This job is too easy. Why can’t they give me something I can really get my teeth into?這活兒太容易了，為什么他們不能讓我干點我真正需要費點勁的事情呢？
(組織、法律等)強大有效；有殺傷力
It appears that the new legislation doesn’t have any teeth, since there has been no improvement in working conditions.新法規似乎不太有效，因為人們的工作條件沒什么改善。
不顧危險(或反對等)
The new law was passed in the teeth of strong opposition.盡管遭到了強烈的反對，新法仍然得以通過。They crossed the Atlantic in the teeth of a force 10 wind.他們冒著10級大風穿越了大西洋。
英英詞典釋義
Noun
1. the kind and number and arrangement of teeth (collectively) in a person or animal