A good example is Pantene Hair Fall Control.

潘婷防脱发洗发水就是个很好的例子。

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I dropped my head, letting my hair fall to conceal my face.

我低下了头，让头发垂下来遮住了我的脸。

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This condition called telogen effluvium results increased hair fall.

这种情况称为休止期沴结果增加头发下降。

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Of course, you can imagine the thoughts of Louis XVI as they were cutting back his hair to await the fall of the guillotine on the 21st of January, 1793.

你可以想象下在1793年1月21日这天,当人们拽住路易十六的头发,等待断头台下落时他会想些什么

耶鲁公开课 - 欧洲文明课程节选

Well, you know if your hair is made blonde that it could fall out,

但是，你知道要是把头发染成金色的话，你就会掉发。

I'm afraid of 课堂 - SpeakingMax英语口语达人

The goal of the latter piece of research is to find the genes responsible for making men's hair fall out.

ECONOMIST: Twin research

It felt like my hair was about to fall off my head.

BBC: Court sketch of defendants

Babs was what Diana, God help us, might be thirty years hence high-heeled, ceramicized, liposucted, devaricosed, her golden fall of hair as shiny and hard as peanut brittle.

NEWYORKER: Wakefield