Update library/http.cookiejar.po

Co-authored-by: W. H. Wang <mattwang44@gmail.com>

Author: LamentXU123

library/http.cookiejar.po

@@ -1045,7 +1045,7 @@ msgid ""
 "Integer expiry date in seconds since epoch, or :const:`None`.  See also "
 "the :meth:`is_expired` method."
 msgstr ""
-"整數的到期日期，以自 epoch 起的秒為單位，或 :const:`None`。 另請參"
+"自 epoch 起計算的整數到期時間，以秒為單位，或 :const:`None`。另請參"
 "閱 :meth:`is_expired` 方法。"
 
 #: ../../library/http.cookiejar.rst:675