translate email.charset.rst: 27-39

Author: isabellechiu

library/email.charset.po

@@ -39,7 +39,7 @@ msgid ""
 "The remaining text in this section is the original documentation of the "
 "module."
 msgstr ""
-"此章節的其餘文字是原始模組的說明文件"
+"此章節的其餘文字是原始模組的說明文件。"
 
 #: ../../library/email.charset.rst:16
 msgid ""
@@ -55,11 +55,11 @@ msgstr ""
 
 #: ../../library/email.charset.rst:22
 msgid "Import this class from the :mod:`email.charset` module."
-msgstr "從 :mod:`email.charset` 模組中 import 此類別"
+msgstr "從 :mod:`email.charset` 模組中 import 此類別。"
 
 #: ../../library/email.charset.rst:27
 msgid "Map character sets to their email properties."
-msgstr ""
+msgstr "將字元集合對應到其電子郵件的屬性。"
 
 #: ../../library/email.charset.rst:29
 msgid ""
@@ -69,13 +69,18 @@ msgid ""
 "codecs.  Given a character set, it will do its best to provide information "
 "on how to use that character set in an email message in an RFC-compliant way."
 msgstr ""
+"此類別提供相關資訊關於電子郵件對特定字元集合的要求。"
+"同時也提供轉換字元集合之間便利的做法，並給予適用的編解碼器 (codecs) 可用性。"
+"給定一個字元集合，此類別將會提供這個字元集合在電子郵件訊息中符合RFC (RFC-compliant) 的使用方式。"
 
 #: ../../library/email.charset.rst:35
 msgid ""
 "Certain character sets must be encoded with quoted-printable or base64 when "
 "used in email headers or bodies.  Certain character sets must be converted "
 "outright, and are not allowed in email."
 msgstr ""
+"在電子郵件標題或內文用特定字元集合時必須使用 quoted-printable 或 base64 來編碼。"
+"特定字元集合必須被徹底轉換並且不被允許在電子郵件中。"
 
 #: ../../library/email.charset.rst:39
 msgid ""
@@ -89,6 +94,11 @@ msgid ""
 "with base64, bodies will not be encoded, but output text will be converted "
 "from the ``euc-jp`` character set to the ``iso-2022-jp`` character set."
 msgstr ""
+"備註 *input_charset* 描述如下；字元集合會被強制轉換為小寫。經過別名標準化後，"
+"會進到字元集合登錄檔 (registry)去查詢此字元集合使用的標題編碼、內文編碼以及輸出轉換編解碼器 (codec)。"
+"例如：如果 *input_charset* 是 ``iso-8859-1`` 標題跟內文會被用 quoted-printable 編碼並且不需要輸出轉換編解碼器 (codecs)。"
+"如果 *input_charset* 是 ``euc-jp`` 標題則會被編碼成 base64 但內文不會被編碼而輸出的文字則會從 ``euc-jp`` "
+"字元集合被轉換成 ``iso-2022-jp`` 字元集合。"
 
 #: ../../library/email.charset.rst:49
 msgid ":class:`Charset` instances have the following data attributes:"