几条道路因马拉松赛而被封闭。

Several roads were closed off for the marathon.

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Several roads were closed off for the marathon.

closed 是动词 close 的过去分词形式,close 的意思是"关闭、封闭"。 off 在这里用作副词,表示"完全地、彻底地"。 closed off 是一个短语动词,意思是"完全封闭、阻断",通常指临时性地关闭道路或区域。

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