来自《耶鲁大学开放课程：有关食物的心理学、生物学和政治学 第13集 第13集》

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  actually shorter than her bottom front teeth
  实际上比她的下门牙要短
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  and it turns out that any kind of acid softens dental enamel.
  原来任何酸性物质都会软化牙釉质
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  Don't suck on too many lemons!
  别吃太多柠檬了
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  So any kind of acid over time will soften dental enamel
  时间长了任何酸性物质都会软化牙釉质
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  and eventually it'll get soft enough, it'll start to chip away;
  并最终导致牙釉质的脱落
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  and some people with bulimia purge enough by inducing vomiting
  某些贪食症患者经常通过催吐来清空胃部
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  and wash, particular their front teeth,
  这样一来 胃酸反复冲刷牙齿
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  with stomach acid over and over and over again
  尤其是门齿
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  that they start to lose tooth, they start to lose dental enamel,
  以致牙齿掉落 牙釉质也遭到侵蚀
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  and that's what happened here.
  这幅图说明了一切
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  So that's obviously a permanent complication of bulimia,
  所以这显然是贪食症的一大永久性并发症
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  rare but it obviously happens.
  不多 但显然存在