知己知彼，百戰不殆。不知彼知己，一勝一負。不知彼不知己，每戰必殆。俄羅斯貿然出兵烏克蘭，屬於後者。

來源: 南瓜蘇於 2022-04-02 07:55:08 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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