n.[C]

1. 牙齿
   I brush my teeth twice a day.

   我每天刷牙两次。

2. 齿状物；（锯，梳，叉等的）齿
   A comb has teeth.

   梳子有梳齿。

3. 嗜好；胃口[S][（+for）]
   I have no tooth for candies.

   我不喜欢吃糖果。

4. 起损害（或毁坏等）作用的力量[P]
5. 强制实施的有效手段[P]

vt.

1. 给……装齿
2. 使成锯齿状
3. 咬

vi.

1. （齿轮等）相咬，啮合

n.

1. each of a set of hard, bony enamel-coated structures in the jaws, used for biting and chewing.
2. a projecting part, especially a cog on a gearwheel or a point on a saw or comb.
3. (teeth) genuine power or effectiveness:
   the Charter would be fine if it had teeth.
4. an appetite or liking for a particular thing.