[po] auto sync bot

zhsj · zhsj · commit 8587bc94e7c6 · 2018-09-26T14:38:03.000+08:00
diff --git a/library/itertools.po b/library/itertools.po
@@ -610,10 +610,12 @@ msgid ""
 ":func:`groupby` object is advanced, the previous group is no longer visible."
 "  So, if that data is needed later, it should be stored as a list::"
 msgstr ""
+"返回的组本身也是一个迭代器，它与 :func:`groupby` 共享底层的可迭代对象。因为源是共享的，当 :func:`groupby` "
+"对象向后迭代时，前一个组将消失。因此如果稍后还需要返回结果，可保存为列表："
 
 #: ../../library/itertools.rst:390
 msgid ":func:`groupby` is roughly equivalent to::"
-msgstr ""
+msgstr ":func:`groupby` 大致相当于"
 
 #: ../../library/itertools.rst:423
 msgid ""
