他山之石，可以攻玉。日本黑船來航的經驗，可以作為借鑒。弱國比強國更需要外交，因為打不過。

來源: 馮墟於 2023-01-27 12:34:06 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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