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有道翻译

他们必须更换

They must be replaced.

以上为机器翻译结果,长、整句建议使用 人工翻译

双语例句

  • 朗太太走了进来,告诉全班同学下星期他们必须更换教室。

    Mrs. Brown came in and told the whole class they would have to change the classroom the next week.

    youdao

  • 他们有一天对于现在必须更换病变风险患者新的过程可能替换选择

    Someday, they say, the new procedure may be an alternative for the kind of lower-risk patients who now have to have their chests opened to replace diseased aortic valves.

    youdao

  • 过程他们必须用于钻探过程里,保持钻井海水压力相当的高密钻井更换掉:因为上方的海水的压力低于底下油气的压力。

    As part of that process they had to replace the dense drilling mud, which was used to keep the well under pressure while it was drilled, with sea-water.

    youdao

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