diff --git a/library/base64.po b/library/base64.po
index 3f83d36e4d..c18011757c 100644
--- a/library/base64.po
+++ b/library/base64.po
@@ -25,7 +25,7 @@ msgstr ":mod:`base64` —— Base16、Base32、Base64、Base85 資料編碼"
 
 #: ../../library/base64.rst:8
 msgid "**Source code:** :source:`Lib/base64.py`"
-msgstr "**原始碼：**\\ :source:`Lib/base64.py`"
+msgstr "**原始碼：** :source:`Lib/base64.py`"
 
 #: ../../library/base64.rst:16
 msgid ""
@@ -36,7 +36,7 @@ msgid ""
 "facto standard Ascii85 and Base85 encodings."
 msgstr ""
 "這個模組提供將二進位資料編碼成可顯示 ASCII 字元以及解碼回原始資料的功能，包括"
-"了\\ :rfc:`4648`\\ 中的 Base16、Base32、Base64 等編碼方式，以及標準 Ascii85、"
+"了 :rfc:`4648` 中的 Base16、Base32、Base64 等編碼方式，以及標準 Ascii85、"
 "Base85 編碼等。"
 
 #: ../../library/base64.rst:22
@@ -46,8 +46,8 @@ msgid ""
 "an HTTP POST request.  The encoding algorithm is not the same as the :"
 "program:`uuencode` program."
 msgstr ""
-":rfc:`4648`\\ 標準編碼可以使電子郵件、URL，或是 HTTP POST 內容等傳輸管道安全"
-"地傳遞資料。這些編碼演算法與\\ :program:`uuencode` \\ 並不相同。"
+":rfc:`4648` 編碼適合對二進位資料進行編碼來使得電子郵件、URL 或是 HTTP POST 內"
+"容等傳輸管道安全地傳遞資料。這些編碼演算法與 :program:`uuencode` 並不相同。"
 
 #: ../../library/base64.rst:27
 msgid ""
@@ -57,6 +57,11 @@ msgid ""
 "or strings containing ASCII to :class:`bytes`.  Both base-64 alphabets "
 "defined in :rfc:`4648` (normal, and URL- and filesystem-safe) are supported."
 msgstr ""
+"該模組提供了兩個介面。新介面支援將\\ :term:`類位元組物件 <bytes-like "
+"object>` 編碼成 ASCII :class:`bytes`，並將包含 ASCII 的\\ :term:`類位元組物"
+"件 <bytes-like object>`\\ 或字串解碼為 :class:`bytes`。支援 :rfc:`4648` 中定"
+"義的兩種 base-64 字母表（常見和 URL 安全 (URL-safe) 及檔案系統安全 "
+"(filesystem-safe) 字母表）。"
 
 #: ../../library/base64.rst:33
 msgid ""
@@ -67,12 +72,16 @@ msgid ""
 "looking for :rfc:`2045` support you probably want to be looking at the :mod:"
 "`email` package instead."
 msgstr ""
+"舊版介面不支援從字串解碼，但它提供對\\ :term:`檔案物件 <file object>`\\ 進行"
+"編碼和解碼的函式。它僅支援 Base64 標準字母表，並且按照 :rfc:`2045` 每 76 個字"
+"元添加換行字元。請注意，如果你需要 :rfc:`2045` 的支援，你可能會需要 :mod:"
+"`email` 函式庫。"
 
 #: ../../library/base64.rst:41
 msgid ""
 "ASCII-only Unicode strings are now accepted by the decoding functions of the "
 "modern interface."
-msgstr ""
+msgstr "新介面的解碼功能現在接受 ASCII-only 的 Unicode 字串。"
 
 #: ../../library/base64.rst:45
 msgid ""
@@ -80,16 +89,20 @@ msgid ""
 "encoding and decoding functions in this module.  Ascii85/Base85 support "
 "added."
 msgstr ""
+"任何\\ :term:`類位元組物件 <bytes-like object>`\\ 現在被該模組中的所有編碼和"
+"解碼函式接受。新增了對 Ascii85/Base85 的支援。"
 
 #: ../../library/base64.rst:49
 msgid "The modern interface provides:"
-msgstr ""
+msgstr "新介面提供："
 
 #: ../../library/base64.rst:53
 msgid ""
 "Encode the :term:`bytes-like object` *s* using Base64 and return the "
 "encoded :class:`bytes`."
 msgstr ""
+"使用 Base64 對\\ :term:`類位元組物件 <bytes-like object>` *s* 進行編碼並回傳"
+"編碼過的 :class:`bytes`。"
 
 #: ../../library/base64.rst:56
 msgid ""
@@ -99,6 +112,10 @@ msgid ""
 "strings.  The default is ``None``, for which the standard Base64 alphabet is "
 "used."
 msgstr ""
+"可選的 *altchars* 必須是一個長度為 2 的\\ :term:`類位元組物件 <bytes-like "
+"object>`，用來指定替代的字母表，以替換 ``+`` 和 ``/`` 字元。這使得應用程式可"
+"以生成對 URL 或檔案系統安全的 Base64 字串。預設值為 ``None``，即使用標準的 "
+"Base64 字母表。"
 
 #: ../../library/base64.rst:61
 msgid ""
@@ -106,12 +123,17 @@ msgid ""
 "2.  Raises a :exc:`TypeError` if *altchars* is not a :term:`bytes-like "
 "object`."
 msgstr ""
+"如果 *altchars* 的長度不是 2，可以斷言或引發 :exc:`ValueError`。如果 "
+"*altchars* 不是\\ :term:`類位元組物件 <bytes-like object>`，則會引發 :exc:"
+"`TypeError`。"
 
 #: ../../library/base64.rst:67
 msgid ""
 "Decode the Base64 encoded :term:`bytes-like object` or ASCII string *s* and "
 "return the decoded :class:`bytes`."
 msgstr ""
+"將經過 Base64 編碼的\\ :term:`類位元組物件 <bytes-like object>`\\ 或 ASCII 字"
+"串 *s* 解碼，並回傳解碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:70
 msgid ""
@@ -119,11 +141,13 @@ msgid ""
 "length 2 which specifies the alternative alphabet used instead of the ``+`` "
 "and ``/`` characters."
 msgstr ""
+"可選的 *altchars* 必須是長度為 2 的\\ :term:`類位元組物件 <bytes-like "
+"object>`\\ 或 ASCII 字串，用於指定替代字母表，取代 ``+`` 和 ``/`` 字元。"
 
 #: ../../library/base64.rst:74
 msgid ""
 "A :exc:`binascii.Error` exception is raised if *s* is incorrectly padded."
-msgstr ""
+msgstr "如果 *s* 填充 (pad) 不正確，將引發 :exc:`binascii.Error` 例外。"
 
 #: ../../library/base64.rst:77
 msgid ""
@@ -132,29 +156,36 @@ msgid ""
 "the padding check.  If *validate* is ``True``, these non-alphabet characters "
 "in the input result in a :exc:`binascii.Error`."
 msgstr ""
+"如果 *validate* 為 ``False``\\ （預設值），在 padding check（填充檢查）之前，"
+"不屬於標準 base-64 字母表和替代字母表的字元將被丟棄。如果 *validate* 為 "
+"``True``，輸入中的這些非字母表字元將導致引發 :exc:`binascii.Error`。"
 
 #: ../../library/base64.rst:83
 msgid ""
 "For more information about the strict base64 check, see :func:`binascii."
 "a2b_base64`"
-msgstr ""
+msgstr "有關嚴格的 base64 檢查的更多資訊，請參閱 :func:`binascii.a2b_base64`。"
 
 #: ../../library/base64.rst:85
 msgid ""
 "May assert or raise a :exc:`ValueError` if the length of *altchars* is not 2."
-msgstr ""
+msgstr "如果 *altchars* 的長度不是 2，可能會斷言或引發 :exc:`ValueError`。"
 
 #: ../../library/base64.rst:89
 msgid ""
 "Encode :term:`bytes-like object` *s* using the standard Base64 alphabet and "
 "return the encoded :class:`bytes`."
 msgstr ""
+"使用標準 Base64 字母表對\\ :term:`類位元組物件 <bytes-like object>` *s* 進行"
+"編碼，並回傳編碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:95
 msgid ""
 "Decode :term:`bytes-like object` or ASCII string *s* using the standard "
 "Base64 alphabet and return the decoded :class:`bytes`."
 msgstr ""
+"使用標準 Base64 字母表對\\ :term:`類位元組物件 <bytes-like object>`\\ 或 "
+"ASCII 字串 *s* 進行解碼，並回傳解碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:101
 msgid ""
@@ -163,6 +194,9 @@ msgid ""
 "`` in the standard Base64 alphabet, and return the encoded :class:`bytes`.  "
 "The result can still contain ``=``."
 msgstr ""
+"使用 URL 安全和檔案系統安全的字母表對\\ :term:`類位元組物件 <bytes-like "
+"object>` *s* 進行編碼，該字母表將標準 Base64 字母表中的 ``+`` 替換為 ``-``，"
+"``/`` 替換為 ``_``，並回傳編碼後的 :class:`bytes`。結果仍可能包含 ``=``。"
 
 #: ../../library/base64.rst:110
 msgid ""
@@ -171,24 +205,33 @@ msgid ""
 "instead of ``/`` in the standard Base64 alphabet, and return the decoded :"
 "class:`bytes`."
 msgstr ""
+"使用 URL 安全和檔案系統安全字母表對\\ :term:`類位元組物件 <bytes-like "
+"object>`\\ 或 ASCII 字串 *s* 進行解碼，該字母表將標準 Base64 字母表中的 "
+"``+`` 替換為 ``-``，``/`` 替換為 ``_``，並回傳解碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:119
 msgid ""
 "Encode the :term:`bytes-like object` *s* using Base32 and return the "
 "encoded :class:`bytes`."
 msgstr ""
+"使用 Base32 對\\ :term:`類位元組物件 <bytes-like object>` *s* 進行編碼，並回"
+"傳編碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:125
 msgid ""
 "Decode the Base32 encoded :term:`bytes-like object` or ASCII string *s* and "
 "return the decoded :class:`bytes`."
 msgstr ""
+"解碼經過 Base32 編碼的\\ :term:`類位元組物件 <bytes-like object>`\\ 或 ASCII "
+"字串 *s*，並回傳解碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:128 ../../library/base64.rst:176
 msgid ""
 "Optional *casefold* is a flag specifying whether a lowercase alphabet is "
 "acceptable as input.  For security purposes, the default is ``False``."
 msgstr ""
+"可選的 *casefold* 是一個是否接受小寫字母表作為輸入的旗標。出於安全性考量，預"
+"設值為 ``False``。"
 
 #: ../../library/base64.rst:132
 msgid ""
@@ -200,24 +243,32 @@ msgid ""
 "purposes the default is ``None``, so that 0 and 1 are not allowed in the "
 "input."
 msgstr ""
+":rfc:`4648` 允許將數字 0 選擇性地對應對映為字母 O，並且允許將數字 1 選擇性地"
+"對映為字母 I 或字母 L。當可選的引數 *map01* 不為 ``None`` 時，指定數字 1 應該"
+"對映為哪個字母（當 *map01* 不為 ``None`` 時，數字 0 總是對映為字母 O）。出於"
+"安全性考量，預設值為 ``None``，因此不允許在輸入中使用數字 0 和 1。"
 
 #: ../../library/base64.rst:139 ../../library/base64.rst:180
 msgid ""
 "A :exc:`binascii.Error` is raised if *s* is incorrectly padded or if there "
 "are non-alphabet characters present in the input."
 msgstr ""
+"如果 *s* 的填充不正確或輸入中存在非字母表字元，將引發 :exc:`binascii.Error`。"
 
 #: ../../library/base64.rst:146
 msgid ""
 "Similar to :func:`b32encode` but uses the Extended Hex Alphabet, as defined "
 "in :rfc:`4648`."
 msgstr ""
+"類似於 :func:`b32encode`，但使用在 :rfc:`4648` 中定義的擴展十六進位字母表 "
+"(Extended Hex Alphabet)。"
 
 #: ../../library/base64.rst:154
 msgid ""
 "Similar to :func:`b32decode` but uses the Extended Hex Alphabet, as defined "
 "in :rfc:`4648`."
 msgstr ""
+"類似於 :func:`b32encode`，但使用在 :rfc:`4648` 中定義的擴展十六進位字母表。"
 
 #: ../../library/base64.rst:157
 msgid ""
@@ -226,24 +277,32 @@ msgid ""
 "these characters are included in the Extended Hex Alphabet and are not "
 "interchangeable."
 msgstr ""
+"這個版本不允許將數字 0 對映為字母 O ，以及將數字 1 對映為字母 I 或字母 L，所"
+"有這些字元都包含在擴展十六進位字母表中，並且不能互換使用。"
 
 #: ../../library/base64.rst:167
 msgid ""
 "Encode the :term:`bytes-like object` *s* using Base16 and return the "
 "encoded :class:`bytes`."
 msgstr ""
+"使用 Base16 對\\ :term:`類位元組物件 <bytes-like object>` *s* 進行編碼，並回"
+"傳編碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:173
 msgid ""
 "Decode the Base16 encoded :term:`bytes-like object` or ASCII string *s* and "
 "return the decoded :class:`bytes`."
 msgstr ""
+"解碼經過 Base16 編碼的\\ :term:`類位元組物件 <bytes-like object>`\\ 或 ASCII "
+"字串 *s*，並回傳解碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:187
 msgid ""
 "Encode the :term:`bytes-like object` *b* using Ascii85 and return the "
 "encoded :class:`bytes`."
 msgstr ""
+"使用 Ascii85 對\\ :term:`類位元組物件 <bytes-like object>` *b* 進行編碼，並回"
+"傳編碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:190
 msgid ""
@@ -251,6 +310,9 @@ msgid ""
 "instead of 4 consecutive spaces (ASCII 0x20) as supported by 'btoa'. This "
 "feature is not supported by the \"standard\" Ascii85 encoding."
 msgstr ""
+"*foldspaces* 是一個可選的旗標，它使用特殊的短序列 'y' 來替代連續的 4 個空格 "
+"(ASCII 0x20)，這是由 'btoa' 支援的功能。這個特性不被「標準」的 Ascii85 編碼所"
+"支援。"
 
 #: ../../library/base64.rst:194
 msgid ""
@@ -258,24 +320,32 @@ msgid ""
 "characters added to it. If this is non-zero, each output line will be at "
 "most this many characters long."
 msgstr ""
+"*wrapcol* 控制輸出是否應該包含換行字元 (``b'\\n'``) 。如果這個值不為零，每行"
+"輸出的長度將不超過這個字元長度。"
 
 #: ../../library/base64.rst:198
 msgid ""
 "*pad* controls whether the input is padded to a multiple of 4 before "
 "encoding. Note that the ``btoa`` implementation always pads."
 msgstr ""
+"*pad* 控制是否在編碼之前將輸入填充為 4 的倍數。請注意，``btoa`` 實作始終會填"
+"充。"
 
 #: ../../library/base64.rst:201
 msgid ""
 "*adobe* controls whether the encoded byte sequence is framed with ``<~`` and "
 "``~>``, which is used by the Adobe implementation."
 msgstr ""
+"*adobe* 控制編碼的位元組序列前後是否加上 ``<~`` 和 ``~>``，這是 Adobe 實作中"
+"使用的。"
 
 #: ../../library/base64.rst:209
 msgid ""
 "Decode the Ascii85 encoded :term:`bytes-like object` or ASCII string *b* and "
 "return the decoded :class:`bytes`."
 msgstr ""
+"解碼經過 Ascii85 編碼的\\ :term:`類位元組物件 <bytes-like object>`\\ 或 "
+"ASCII 字串 *b*，並回傳解碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:212
 msgid ""
@@ -283,12 +353,16 @@ msgid ""
 "be accepted as shorthand for 4 consecutive spaces (ASCII 0x20). This feature "
 "is not supported by the \"standard\" Ascii85 encoding."
 msgstr ""
+"*foldspaces* 是一個旗標，指定是否應該將短序列 'y' 視為 4 個連續的空格 (ASCII "
+"0x20) 的簡寫。這個功能不受「標準」Ascii85 編碼的支援。"
 
 #: ../../library/base64.rst:216
 msgid ""
 "*adobe* controls whether the input sequence is in Adobe Ascii85 format (i.e. "
 "is framed with <~ and ~>)."
 msgstr ""
+"*adobe* 控制輸入序列是否符合 Adobe Ascii85 格式（即前後加上 ``<~`` 和 "
+"``~>``）。"
 
 #: ../../library/base64.rst:219
 msgid ""
@@ -297,18 +371,25 @@ msgid ""
 "whitespace characters, and by default contains all whitespace characters in "
 "ASCII."
 msgstr ""
+"*ignorechars* 是一個包含要從輸入中忽略的字元的\\ :term:`類位元組物件 <bytes-"
+"like object>`\\ 或 ASCII 字串。這只包含空格字元，預設情況下包含 ASCII 中的所"
+"有空格字元。"
 
 #: ../../library/base64.rst:229
 msgid ""
 "Encode the :term:`bytes-like object` *b* using base85 (as used in e.g. git-"
 "style binary diffs) and return the encoded :class:`bytes`."
 msgstr ""
+"使用 Base85（例如，git 風格的二進位差異 (binary diff)）對\\ :term:`類位元組物"
+"件 <bytes-like object>` *b* 進行編碼，並回傳編碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:232
 msgid ""
 "If *pad* is true, the input is padded with ``b'\\0'`` so its length is a "
 "multiple of 4 bytes before encoding."
 msgstr ""
+"如果 *pad* 為 true，則在編碼之前，輸入將使用 ``b'\\0'`` 進行填充，以使其長度"
+"為 4 的倍數。"
 
 #: ../../library/base64.rst:240
 msgid ""
@@ -316,10 +397,12 @@ msgid ""
 "return the decoded :class:`bytes`.  Padding is implicitly removed, if "
 "necessary."
 msgstr ""
+"解碼經過 base85 編碼的\\ :term:`類位元組物件 <bytes-like object>`\\ 或 ASCII "
+"字串 *b*，並回傳解碼後的 :class:`bytes`。必要時會隱式移除填充。"
 
 #: ../../library/base64.rst:247
 msgid "The legacy interface:"
-msgstr ""
+msgstr "舊版介面："
 
 #: ../../library/base64.rst:251
 msgid ""
@@ -328,12 +411,17 @@ msgid ""
 "objects <file object>`. *input* will be read until ``input.readline()`` "
 "returns an empty bytes object."
 msgstr ""
+"解碼二進位檔案 *input* 的內容，並將結果的二進位資料寫入 *output* 檔案。 "
+"*input* 和 *output* 必須是\\ :term:`檔案物件 <file object>`。*input* 將被讀"
+"取，直到 ``input.readline()`` 回傳一個空的 bytes 物件為止。"
 
 #: ../../library/base64.rst:259
 msgid ""
 "Decode the :term:`bytes-like object` *s*, which must contain one or more "
 "lines of base64 encoded data, and return the decoded :class:`bytes`."
 msgstr ""
+"解碼必須包含一行或多行的 base64 編碼資料\\ :term:`類位元組物件 <bytes-like "
+"object>` *s*，並回傳解碼後的 :class:`bytes`。"
 
 #: ../../library/base64.rst:267
 msgid ""
@@ -344,6 +432,11 @@ msgid ""
 "(``b'\\n'``) after every 76 bytes of the output, as well as ensuring that "
 "the output always ends with a newline, as per :rfc:`2045` (MIME)."
 msgstr ""
+"編碼二進位檔案 *input* 的內容，並將結果的 base64 編碼資料寫入 *output* 檔案。"
+"*input* 和 *output* 必須是\\ :term:`檔案物件 <file object>`。*input* 將被讀"
+"取，直到 ``input.read()`` 回傳一個空的 bytes 物件為止。:func:`encode` 會在輸"
+"出的每 76 個位元組之後插入一個換行字元 (``b'\\n'``)，並確保輸出始終以換行字元"
+"結尾，符合 :rfc:`2045` (MIME) 的規定。"
 
 #: ../../library/base64.rst:277
 msgid ""
@@ -352,14 +445,17 @@ msgid ""
 "newlines (``b'\\n'``) inserted after every 76 bytes of output, and ensuring "
 "that there is a trailing newline, as per :rfc:`2045` (MIME)."
 msgstr ""
+"對包含任意二進位資料的\\ :term:`類位元組物件 <bytes-like object>` *s* 進行編"
+"碼，並回傳包含 base64 編碼資料 :class:`bytes`，在每 76 個輸出位元組後插入換行"
+"字元 (``b'\\n'``) ，並確保有尾隨換行字元，符合 :rfc:`2045` (MIME) 的規定。"
 
 #: ../../library/base64.rst:285
 msgid "An example usage of the module:"
-msgstr ""
+msgstr "模組的一個範例用法："
 
 #: ../../library/base64.rst:298
 msgid "Security Considerations"
-msgstr ""
+msgstr "安全考量"
 
 #: ../../library/base64.rst:300
 msgid ""
@@ -367,6 +463,8 @@ msgid ""
 "it's recommended to review the security section for any code deployed to "
 "production."
 msgstr ""
+":rfc:`4648`\\ （第 12 節）中添加了一個新的安全性考量部分；建議對部署到正式環"
+"境的任何程式碼進行安全性部分的審查。"
 
 #: ../../library/base64.rst:305
 msgid "Module :mod:`binascii`"
@@ -376,6 +474,8 @@ msgstr ":mod:`binascii` 模組"
 msgid ""
 "Support module containing ASCII-to-binary and binary-to-ASCII conversions."
 msgstr ""
+"支援模組中包含 ASCII 到二進位 (ASCII-to-binary) 和二進位到 ASCII (binary-to-"
+"ASCII) 的轉換功能。"
 
 #: ../../library/base64.rst:308
 msgid ""
@@ -383,12 +483,15 @@ msgid ""
 "Mechanisms for Specifying and Describing the Format of Internet Message "
 "Bodies"
 msgstr ""
+":rfc:`1521` - MIME（多用途網際網路郵件擴展）第一部分：指定和描述網際網路主體"
+"格式的機制。"
 
 #: ../../library/base64.rst:309
 msgid ""
 "Section 5.2, \"Base64 Content-Transfer-Encoding,\" provides the definition "
 "of the base64 encoding."
 msgstr ""
+"第 5.2 節，\"Base64 Content-Transfer-Encoding\"，提供了 base64 編碼的定義。"
 
 #: ../../library/base64.rst:10
 msgid "base64"

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