I believe that if you know how to make paper cuts, your life will be nice and more colorful.

我相信，如果你知道如何剪纸，你的生活将会很美好，而且更加丰富多彩。

youdao

They're almost as friendly as dogs—if you know how to get on with them.

他们几乎和狗一样友好——如果你知道怎么和他们相处的话。

youdao

If you know how to worry, you already know how to meditate!

你若知道怎么忧虑，你就已经知道怎样默想了！

youdao

You really cannot know how much C if any C of the information that comes to you by the grapevine is true or false.

VOA: special.2009.02.22

You'd pull out your pencil and paper, you can do it as a matrix inversion if you know how to do that, or you can just simply do substitution of one equation into another to solve it.

你知道你在小学的时候是怎么做的对吧？,你拿出你的笔和纸,如果你会的话,你可以解一个方程组,或者你可以单纯地。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you know how to do it, you can get it for really cheap.

要是你知道怎么做的话，你就可以买到很便宜的票。

实惠的歌舞剧 - SpeakingMax英语口语达人

If you know how to use Microsoft Office, it's easy to pick up.

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She said that if you know how to code, you can launch your own website saving you money and time.

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If you know how to write and how to give a presentation, you will have a leg up in your career.

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