看上去17也是需要History的。13 是否 doitthen? 仅从“at that time" 来猜的。

来源: Learntoforget 于 2010-01-26 13:21:51 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.