If you are unsure of how to use any apparatus or how to operate, ask your teacher for help.

如果你不确定如何使用仪器或操作，请向老师寻求帮助。

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Forgetting how to operate a familiar object like a microwave oven, or forgetting how to drive to the house of a friend you've visited many times before can also be signs of something going wrong.

当你忘记如何操作一个熟悉的物品，如微波炉，或是忘记如何开车到一个你之前就拜访过很多次的朋友家时，这可能就是出现问题的征兆。

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I have no idea how to operate the new washing machine.

我不知道如何操作这台新洗衣机。

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Coppi's restaurant on U Street has become a good example in the community of how to operate a "green" business.

VOA: special.2009.04.10

As we learned about how humans operate we could start to design machines that would help humans when they weren't functioning properly.

当我们了解了机体如何运作,就可以设计出器械,在人体某些部位功能失常时提供帮助

耶鲁公开课 - 生物医学工程探索课程节选

He said the Earth is like a large mechanical device that will survive only if people living on it know how to operate it correctly.

VOA: special.2010.05.30

China would only learn from us about how to operate with a civil space station.

CNN: Make China our new partner in space

And they know how to operate in a complex market where government regulation imposes high costs.

ECONOMIST: Latin America

Working for NTT, NEC gained little experience of how to operate its equipment inside a live network.

ECONOMIST: Japanese manufacturing