Sometimes if they didn't know the meaning of a word, but knew the sign for that word then it would be very easy to deduce the meaning of the word, since most signs had very obvious meanings.

有时，你没有学过某个单词，不懂得它的意思，但手语的意思却很容易令人明白。 因为，肢体语言往往是一种“世界通用”的语言，很多手语是很直接的，一目了然的。

youdao

I knew none of this—if indeed I know any of it now and am not just making patterns in the air, but as I thought back then on what had excited me, the excitement came back.

我对此一窍不通——如果我确实懂得点的话，就不会凭空乱想一气，但当我回想当时使我兴奋不已的事情时，那令人激动的心情便油然而生。

youdao

What he did not know-indeed, what no one knew until now-is that most cars would not work without the intervention of one of his most famous discoveries, the special theory of relativity.

而他不知道的——也是直到现在人们才知道的是——没有他的伟大发现之一，即狭义相对论，大多数汽车不可能发动起来。

youdao

But those of us who knew Teddy and worked with him here -- people of both parties -- know that what drove him was something more.

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So, I stood in line for twenty minutes in order to speak to a 23-year veteran of the airline industry, who also knew everything there was to know about international travel.

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Now, we know that this tax cut would probably be going to the wealthiest 1 percent of all households -- we knew that.

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