我们用来设计发型的那部分头发已经没有生命。

The part of the hair we style is already dead.

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当人睡着了的时候一部分头脑还处于活动状态。

While a person is asleep, a part of his brain is still active.

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当人睡着了的时候一部分头脑还处于活动状态。

While a person is asleep, a part of his brain is still active.

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