许多重要的历史文件在图书馆被炸毁时被破坏了。

许多重要的历史文件在图书馆被炸毁时被破坏了。

Many important historical documents were destroyed when the library was bombed.

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Many important historical documents were destroyed when the library was bombed.

historical 是由名词 history(历史)加上后缀 -al 构成的形容词,表示"与历史有关的"或"历史上的"。

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