落后挨打和先进挨打都是在各自特定条件下形成的，都不是通式。

来源: 技术员于 2019-09-14 16:03:37 [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.