a a piece of
双语例句原声例句权威例句
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She hardly ate a thing, just toyed with a piece of cheese on her plate.
她几乎没吃一点东西，只是拨弄着碟子里的一块奶酪。
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A powerful electric current is passed through a piece of graphite.
一股强大的电流被传导经过一块石墨。
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It's like having a flaw in a piece of material - the longer you leave it, the weaker it gets.
这就像一块料子上有瑕疵一样—你把它放得越久，它就变得越不结实。
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A doughnut is a round piece of fried dough with a hole in the middle or filled with cream or jelly.
VOA: special.2010.04.12
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It's a piece of language but it also belongs to other sorts of semiotic systems as we'll immediately see.
它是一种语言,它属于一个特殊的语义系统,下面我来解释一下。
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This decision is also hard to make because when you are a backend technology provider, it's like selling a piece of commodity.
之所以这是一个困难的决定还因为,当作为后台技术提供商时，就像出售一件商品似的。
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