这三个条件是充分条件：是说这几个条件满足后一定能胜，没有说没满足时一定不胜。既然是充分条件，也就告诉了人们努力的方向。

来源: 方外居士于 2025-08-22 16:31:03 [旧帖] [给我悄悄话] 本文已被阅读：次

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