Helen 's teeth protrude too far.

海伦的牙齿太突出了。

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"Good! Now, there 's stuff in that fellow," muttered phineas, between his teeth.

“好得很！这小伙子真有几下子，”斐尼亚斯从牙缝里咕哝道。

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Volunteers to work seven days a week in helping others are as scarce as hen' s teeth.

一星期当七天义工去帮助他人，可很少见。

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Parents often wonder what effect thumb sucking or sucking on a pacifier might have on their baby's teeth.

VOA: special.2009.03.11

It's a poem on which this very young poet is cutting his teeth.

这首诗让这个年轻的诗人变得成熟。

耶鲁公开课 - 弥尔顿课程节选

Because it's hurting his health, his teeth.

因为糖损害他的健康，牙齿。

哈佛公开课 - 幸福课课程节选

Rice once knocked out one of his father's teeth while playing against each other.

WSJ: Rice's abrasive nature apparent early in career

First, scientists carried out isotype analysis on the enamel of one of the skeleton's teeth.

BBC: Roman man's face finally revealed at Caerleon museum

America does not track birthdays precisely, because a close estimate can be made from a cow's teeth.

ECONOMIST: An end to Japan's ban on American beef may be in sight