If he wants to succeed, he must work harder.

如果他想成功，他必须更加努力工作。

youdao

His work is boring but my father says that he must work hard to support our family.

他的工作很无聊但是我爸爸说他必须努力工作以维持我们的家庭。

youdao

If he is to succeed, he must work even harder.

如果他想要成功，他就必须更加努力地工作。

youdao

In his comments Wednesday, he said the United States must work to remove trade barriers and open new markets.

VOA: special.2010.07.09

And you assumed that he must work out.

你认为他肯定常常锻炼。

Do you 课堂 - SpeakingMax英语口语达人

He said that the work to improve crop production must continue.

VOA: special.2009.11.10

He must work out ... wait, where are the donuts they gave us earlier?

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He may not have seen it in writing, but Archer knows the limits within which he must work.

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But the club fear another transfer ban so Jones knows he must work quickly to strengthen his squad.

BBC: Craig Bellamy allowed to train with Cardiff City