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dead letters的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
名詞 dead letter:
-
the state of something that has outlived its relevance
-
mail that can neither be delivered nor returned
dead letters的用法和樣例：
例句
- In our department, this rule has become a dead letter.
在我們這個部門，這條制度已成為一紙空文。 - Many people say that detente is now a dead letter.
很多人說緩和國際緊張局勢的論調已是明日黃花。
