tooth

armed to the teeth

formidably armed

武装到牙齿，全副武装

fight tooth and nail

fight very fiercely

凶猛地打斗

get (或 sink) one's teeth into

work energetically and productively on (a task)

积极而富成效地工作；专注于

the course gives students something to get their teeth into.

这门课程能给学生一些值得深究的东西。

in the teeth of

directly against (the wind)

逆（风）

set someone's teeth on edge

get (one's) teeth into 或 sink (one's) teeth into &I{【俚语】}

To be actively involved in; get a firm grasp of.

积极地参与其中；牢牢地抓住

show (one's) teeth 或 bare (one's) teeth

To express a readiness to fight; threaten defiantly.

示威：表现准备战斗；凶狠地进行威胁

to the teeth

Lacking nothing; completely

全副地：不缺少任何东西的；全部地

armed to the teeth; dressed to the teeth.

武装到牙齿；全副打扮