diff --git a/library/datetime.po b/library/datetime.po
index ae13bec8e3..3c29f3c69b 100644
--- a/library/datetime.po
+++ b/library/datetime.po
@@ -973,6 +973,9 @@ msgstr ""
 msgid ""
 "Return a string representing the date in ISO 8601 format, ``YYYY-MM-DD``::"
 msgstr ""
+"回傳一以 ISO 8601 格式 ``YYYY-MM-DD`` 表示的日期字串：\n"
+"\n"
+"::"
 
 #: ../../library/datetime.rst:717
 msgid "For a date *d*, ``str(d)`` is equivalent to ``d.isoformat()``."