这里是一个参与者描述的：“我去剪掉头发好捐给“爱之锁”[一个为年轻癌症患者制作假发的慈善组织]。”

Here is what one of my participants pictured: "I was getting my hair cut to donate to Locks of Love [a charity that fashions wigs for young cancer patients]."

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头发是一千多年来被人们发现的一种保存得最为完好的人类身体组织，真因为如此，对尸体头发的分析研究不仅可以阐明犯罪的方法，而且也可以用来研究古代的文明。

Hair is one of the best preserved human tissues found over the millennia, and as such, analyzing it can not only shed light on crimes, but also on ancient civilizations.

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这两种元素的原子最终进入了我们的组织和头发。

Atoms of these two elements end up in our tissues and hair.

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