You have to hold onto them. They bump into things. They laugh and cry. They urinate. They vomit.

他们走路要你扶，走着走着就会撞上，还又哭又笑，随地小便，会呕吐。

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Before enrolling in the study, subjects had to pass a "centrifuge-tolerance test" to make sure they wouldn't vomit.

在参加此次研究之前，实验对象需要通过“离心忍受度测验”，以保证他们在测试过程中不会呕吐。

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Alcohol poisoning impairs a person's gag reflex and they could choke on their own vomit or inhale vomit into their lungs.

酒精中毒会削弱人呕吐的条件反射，因此，他可能被自己的呕吐物卡住窒息或把呕吐物吸进肺里。

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For example, "Many people tell us that they vomit yesterday's food, " says Joel Saper, director of the Michigan Head-Pain and Neurological Institute in Ann Arbor.

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They will want to vomit when they see that Justin Bieber T-shirt or Selena Gomez board game.

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They both eat very little, suffer from reflux and regularly vomit - but if they don't eat enough they become tired and irritable.

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