For barrier synchronization add a B, for fence synchronization add an F, and for no synchronization you do not need to add anything.

对于 barrier 同步会增加一个 B，对于 fence 同步会增加一个 F，对于无同步则不会增加任何内容。

youdao

B You can say a minus B is a plus minus B and we know how to add vectors and we know what minus B is.

可以把A减b看作a加负，我们既知道怎么做加法，也知道负b是什么。

youdao

B: They will add a couple of days to our shipping date.

B：那要多个二、的三天才能出货哦。

youdao

So, suppose I tell you to add two vectors, A and B equal to C, and I say, "What's the result of adding A and B?"

假设我告诉你们将两个矢量相加,A + B = C,我问,"A 加 B 结果是什么"

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