他作势猛咬我的脚踝时，牙齿咔嚓作响。

His teeth clicked as he snapped at my ankle.

《柯林斯英汉双解大词典》

来自弗吉尼亚州的里克·拉希姆以开直升机为生，当他7岁儿子的牙齿松动时，他毫不犹豫地就把牙绑在门把手上。

Rick Rahim from Virginia flies helicopters for a living, and when his seven-year-old son's tooth became loose he did not waste time by tying it to a door handle.

youdao

当她睁开眼睛时，她看到蒂姆医生握着她的牙齿，微笑着。

When she opened her eyes, she saw Doctor Tim holding her tooth, smiling.

youdao

And my bet also is that that sort of distinction, how much teeth you show when you smile, is the sort of thing that would show regional and country by country differences.

我打赌区别还在于，微笑时你露了多少颗牙齿，这可以看出地区和国家的不同。

耶鲁公开课 - 心理学导论课程节选