But the major ingredient of semiconductors is silicon, the second most abundant element on earth.

但是半导体的主要成分是硅，一种地球上含量第二丰富的元素。

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But the major ingredient of semiconductors is silicon, the second abundant element on earth.

但是，半导体的主要成份硅，是地球上第二大丰富的元素。

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Which usually has a negative slope, except for the two most important substances on Earth, which are water and silicon. So for water and silicon, we have positive slope.

它的斜率一般负的，除了水和水和硅以外，对于水和硅，斜率是正的。

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The good optimism springs from what Silicon Valley does better than anyplace else on Earth: It turns technology into cool products and wraps dynamic companies around them.

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