欧路词典
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必须保持

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bì xū bǎo chí
mandatory retention

A policeman has to keep on his toes all the time he's on duty.

警察在必须保持警覺。

Athletes have to train continuously to stay in peak condition.

必须不断训练才能保持最佳竞技状态。

On this superhighway drivers should keep to a speed of over 80 miles per hour.

在这条高速公路,驾驶员必须保持每小80英里以的速度。

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相似单词


必死的命运, 必修的, 必修课, 必修课程, 必须, 必须保持, 必须承认, 必须的, 必须地, 必须平放,