You never know what's going to happen tomorrow. You never know who will be leaving you and never return ever again.

你永远不知道明天发生什么，你不知道谁将离开你并且永远不会回来。

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You may have to learn things that you never thought you needed to know and overcome obstacles you never thought existed.

你可能必须要学会一些你从来没想过你需要知道的事情，并且要克服你从没想过会存在的障碍。

youdao

Did you know that I’ve never traveled outside the United States? I’ve never even been to Mexico or Canada.

可能你不知道，我没有出过国，即使是加拿大或是墨西哥我也没去过。

youdao

So I've never felt like a minority because,as you know, minorities are never supposed to say anything unkind about one another."

VOA: special.2010.08.08

To put it differently, in order to know what "Dogs" means, you never had to learn the word "Dogs."

换个说法,为了知道"狗狗们"的意思,你不需要去学"狗狗们"这个词

耶鲁公开课 - 心理学导论课程节选

It was the first time I actually I've never got into a church in my kind of modern Presbyterian church in Madison, you know in Wisconsin where I grew up.

那真的是我第一次感受到,我从来都没有在,麦迪逊去过现代的长老会教堂，你们知道吧，我是在威斯康星洲的麦迪逊长大的。

普林斯顿公开课 - 人性课程节选

In simplest terms, you never know what might happen to your job, and you never know what opportunities are out there waiting for you.

FORBES: Lead with Your Strengths and Build Your Personal Brand Online

Oh - we talked about this as recently as a week ago because I felt that, you know, you never know how - there are these urban myths, you know.

NPR: Ask Amy: Responding to the Thin Envelope

Many patent lawyers will tell you that you never know the value of a patent until it is tested in court.

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