Well, not sure.

来源: 于 2009-12-18 11:38:48 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

I only know:

it's raining cats and dogs
http://web.wenxuecity.com/BBSView.php?SubID=mysj&MsgID=63722

Share one: It never rains but it pours.
来源: lilac09 于 09-12-18 10:26:07
http://web.wenxuecity.com/BBSView.php?SubID=mysj&MsgID=63782