And removal is called for in cases where fluid collects around a wisdom tooth that is partly or fully below the gum.

VOA: special.2011.08.10

Not the tooth.

也不是门牙。

耶鲁公开课 - 公正课程节选

The tooth.

是门牙。

耶鲁公开课 - 公正课程节选

For example, in two thousand seven, doctors in the Washington area said a boy died when a tooth infection spread to his brain.

VOA: special.2009.03.11

If evolution is survival of the fittest, nature red in tooth and claw, how could animals evolve moral feelings?

如果进化论是讲适者生存，在弱肉强食的自然界，动物怎么能进化出道德情感？

耶鲁公开课 - 心理学导论课程节选

These were the saber-tooth cat, the North American lion, the dire wolf and the coyote.

VOA: special.2010.04.07

If both religion and reason are removed, all that remains is will and power, where the only law is the law of tooth and claw.

如果宗教和理性都被世人所摒弃,那么世间就只剩下了权力和欲望,而这世间唯一准则就只剩下了弱肉强食

耶鲁公开课 - 古希腊历史简介课程节选

They identified the genetic cause of a disease called Charcot-Marie-Tooth.

VOA: special.2010.03.23

During the Depression, people were willing to have their tooth pulled for only $4,500.

大萧条时期，人们愿意为了区区4500美元拔掉自己的牙。

耶鲁公开课 - 公正课程节选

Al-Zaidi, who faced the cameras wrapped in an Iraqi flag, was missing a tooth, but otherwise appeared in good health.

VOA: standard.2009.09.15

A tooth brush is used around the eyes to protect them from the suds.

VOA: standard.2010.06.08