People who do very important jobs sometimes have to work around the clock.

有重要工作的人,有时必须夜以继日地工作.

《简明英汉词典》

People with very important jobs sometimes have to work around the clock.

有要职在身的人有时要日以继夜地工作.

辞典例句

Most public aid groups work around - the - clock seven days a week.

大多数公众安全部门全日制、时制工作.

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