tooth

noun

1. 牙；齿
   any of the hard white structures in the mouth used for biting and chewing food
   1. I've just had a tooth out at the dentist's.
      我刚在牙科诊所拔了一颗牙。
   2. to brush/clean your teeth
      刷牙
   3. tooth decay
      龋齿
   4. She answered through clenched teeth (= opening her mouth only a little because of anger) .
      她咬牙切齿地回答。
   5. The cat sank its teeth into his finger.
      那只猫狠狠咬住了他的手指。
2. 齿状部分；齿
   a narrow pointed part that sticks out of an object
   1. the teeth on a saw
      锯齿

1. N-COUNT 牙;齿
   Your teeth are the hard white objects in your mouth, which you use for biting and chewing.
   1. She had very pretty straight teeth...
      她有一口漂亮整齐的牙齿。
   2. If a tooth feels very loose, your dentist may recommend that it's taken out.
      如果某颗牙松动得很厉害，牙医会建议把它拔掉。
2. N-PLURAL 齿状物;(梳子、锯、齿轮、拉链等的)齿
   The teeth of something such as a comb, saw, cog, or zip are the parts that stick out in a row on its edge.
   1. The front cog has 44 teeth.
      前齿轮有 44 个齿。
3. N-PLURAL (官方组织、法律等的)威力，效力
   If you say that something such as an official group or a law has teeth, you mean that it has power and is able to be effective.
   1. The opposition argues that the new council will be unconstitutional and without teeth...
      反对派争辩说新委员会不但违反宪法，而且没有效力。
   2. The law must have teeth, and it must be enforced.
      法律必须拥有效力，而且必须强制实施。
4. See also: wisdom tooth
5. PHRASE 全副武装;武装到牙齿
   Someone who is armed to the teeth is armed with a lot of weapons or with very effective weapons.
   1. Both sides were armed to the teeth.
      双方都全副武装。
6. PHRASE 获得初步经验(或训练);起步
   If you say that someone cut their teeth doing a particular thing, at a particular time, or in a particular place, you mean that that is how, when, or where they began their career and learned some of their skills.
   1. ...director John Glen, who cut his teeth on Bond movies...
      从邦德电影开始初试牛刀的导演约翰·格伦
   2. He cut his teeth in the sixties as director of Edinburgh's Traverse Theatre.
      他 60 年代刚出道时在爱丁堡特拉弗斯剧院担任导演。
7. PHRASE 使人感到极其不舒服(或恼怒)
   If you say that something sets your teeth on edge, you mean that you find it extremely unpleasant or irritating.
   1. Their voices set your teeth on edge.
      他们的声音让你浑身不舒服。
8. PHRASE 奋力争取/竭尽全力阻止
   If you fight tooth and nail to do something, you do everything you can in order to achieve it. If you fight something tooth and nail, you do everything you can in order to prevent it.
   1. He fought tooth and nail to keep his job...
      他竭尽全力保住自己的工作。
   2. Unions pledged to fight any compulsory redundancies 'tooth and nail'.
      工会许诺会“竭尽所能地”阻止任何强制裁员。
9. PHRASE 潜心专注于;全力投入
   If you describe a task or activity as something you can get your teeth into, you mean that you like it because it is interesting, complex, and makes you think hard.
   1. This role gave her something to get her teeth into...
      这一角色让她全情投入其中。
   2. They have to get involved and get their teeth into some police work.
      他们必须参与进来，全力投入到一些警务工作中。
10. PHRASE 直对;顶着;不顾
    If you do something in the teeth of a difficulty or danger, you do it in spite of the difficulty or danger.
    1. I was battling my way along the promenade in the teeth of a force ten gale...
       我不顾十级大风沿着步行街挣扎前行。
    2. In the teeth of the longest recession since the 1930s, the company continues to perform well.
       尽管面对 20 世纪 30 年代以来持续时间最长的经济衰退，这家公司却一直经营良好。
11. 满口谎话;睁着眼说瞎话
    If you say that someone is lying through their teeth, you are emphasizing that they are telling lies.
12. PHRASE 年迈的;年老的
    If you describe someone as long in the tooth, you are saying unkindly or humorously that they are old or getting old.
    1. Aren't I a bit long in the tooth to start being an undergraduate?
       我现在才去读大学本科不是有点太老了吗？
13. PHRASE 爱吃甜食
    If you have a sweet tooth, you like sweet food very much.
    1. Add more honey if you have a sweet tooth.
       如果你喜欢吃甜的就多加点蜂蜜。
14. to get the bit between your teeth → see: bit

1. The blow chipped the woman's tooth
   那一击把那个女人的一颗牙打掉了一块。
2. I lost a tooth while chomping on a French baguette!
   我啃法棍面包时，崩掉了一颗牙！
3. Many infants do not cut their first tooth until they are a year old.
   很多婴儿到一岁大时才开始长牙。
4. A tooth which has been hit hard may discolour
   受过重击的牙齿可能会变色。
5. A dentist may decide to extract the tooth to prevent recurrent trouble
   牙医可能会决定拔掉那颗牙，以免反复发作。
6. She is to go and have a tooth extracted at 3 o'clock today.
   她今天3点要去拔颗牙。
7. It is almost impossible to find a dentist who will fill a tooth on the National Health.
   几乎不可能找到一位愿意接受国民医疗保健来补牙的医师。
8. If a tooth feels very loose, your dentist may recommend that it's taken out
   如果有一颗牙齿很松，牙医可能会建议你把它拔掉。
9. The dentist commenced to dig, drill and finally fill the offending tooth.
   牙医开始在那颗有问题的牙齿上挖洞，钻孔，直到最后把它补好。
10. Deposits of plaque build up between the tooth and the gum.
    牙齿和牙龈之间会滋生牙斑。
11. I got an abscess so he took the tooth out
    我牙龈脓肿，所以他就把那颗牙拔掉了。
12. She had very pretty straight teeth
    她有一口漂亮整齐的牙齿。
13. The front cog has 44 teeth.
    前齿轮有44个齿。
14. The opposition argues that the new council will be unconstitutional and without teeth
    反对派争辩说新委员会不但违反宪法，而且没有效力。
15. The law must have teeth, and it must be enforced.
    法律必须拥有效力，而且必须强制实施。
16. Both sides were armed to the teeth.
    双方都全副武装。
17. He cut his teeth in the sixties as director of Edinburgh's Traverse Theatre.
    他60年代刚出道时在爱丁堡特拉弗斯剧院担任导演。
18. Their voices set your teeth on edge.
    他们的声音让你浑身不舒服。
19. He fought tooth and nail to keep his job
    他竭尽全力保住自己的工作。
20. Unions pledged to fight any compulsory redundancies 'tooth and nail'.
    工会许诺会“竭尽所能地”阻止任何强制裁员。
21. This role gave her something to get her teeth into
    这一角色让她全情投入其中。
22. They have to get involved and get their teeth into some police work.
    他们必须参与进来，全力投入到一些警务工作中。
23. I was battling my way along the promenade in the teeth of a force ten gale
    我不顾十级大风沿着步行街挣扎前行。
24. In the teeth of the longest recession since the 1930s, the company continues to perform well.
    尽管面对20世纪30年代以来持续时间最长的经济衰退，这家公司却一直经营良好。
25. Aren't I a bit long in the tooth to start being an undergraduate?
    我现在才去读大学本科不是有点太老了吗？
26. Add more honey if you have a sweet tooth.
    如果你喜欢吃甜的就多加点蜂蜜。
27. She cried out with pain when the dentist pulled her tooth out.
    牙医拔牙时她痛得喊叫起来。
28. I have a loose tooth.
    我的一个牙齿松动了。
29. My tooth is paining.; I have a toothache.; My tooth aches.
    我牙疼。
30. Which tooth pains you?
    你哪一颗牙齿痛？

n.

cut your teeth on sth

• 从…中获得初步经验；初次涉足
  to do sth that gives you your first experience of a particular type of work

cut a tooth

• 出牙；长出新牙
  to grow a new tooth

get your teeth into sth

• 专注于，全力投入（有一定难度的事）
  to put a lot of effort and enthusiasm into sth that is difficult enough to keep you interested
  1. Choose an essay topic that you can really get your teeth into.
     选择一个你可以真正悉心钻研的论文题目。

have teeth

• 具有强大威力；有杀伤力
  to be powerful and effective

in the teeth of sth

• 不管，不顾，尽管遇到（困难、反对等）
  despite problems, opposition, etc.
  1. The new policy was adopted in the teeth of fierce criticism.
     新政策尽管受到强烈的批评，但还是被采用了。
• 顶着，迎着（强风）
  in the direction that a strong wind is coming from
  1. They crossed the bay in the teeth of a howling gale.
     他们顶着呼啸的狂风渡过了海湾。

set sb's teeth on edge

• 使感到身体不舒服
  to make sb feel physically uncomfortable
  1. Just the sound of her voice sets my teeth on edge.
     我一听到她的声音就浑身不舒服。

bare your teeth

• （凶狠地）龇牙咧嘴
  to show your teeth in an aggressive and threatening way
  1. The dog bared its teeth and growled.
     那条狗龇牙咧嘴地低吼。

get the bit between your teeth

• 果断地做某事；义无反顾
  to become very enthusiastic about sth that you have started to do so that you are unlikely to stop until you have finished

an eye for an eye (and a tooth for a tooth)

• 以眼还眼；以牙还牙
  used to say that you should punish sb by doing to them what they have done to you or to sb else

fight tooth and nail

• 坚决斗争；全力以赴地斗争
  to fight in a very determined way for what you want
  1. The residents are fighting tooth and nail to stop the new development.
     居民为制止新的建房开发计划正在全力以赴进行斗争。

gnash your teeth

• （气得）咬牙切齿
  to feel very angry and upset about sth, especially because you cannot get what you want
  1. He'll be gnashing his teeth when he hears that we lost the contract.
     他要是听说我们丢了这份合同，准会气得咬牙切齿。

grit your teeth

grit your teeth

Hell's teeth

• （表示气愤或吃惊）可恶，天哪
  used to express anger or surprise

kick sb in the teeth

• 粗暴对待某人；使极度失望
  to treat sb badly or fail to give them help when they need it

a kick in the teeth

• 极度的失望；沉重的打击；重大的挫折
  a great disappointment; sth that hurts sb/sth emotionally

lie through your teeth

• 满口谎言；撒弥天大谎；睁着眼说瞎话
  to say sth that is not true at all
  1. The witness was clearly lying through his teeth.
     那证人分明是在睁着眼睛说瞎话。

long in the tooth

• 年齿渐长；老朽
  old or too old

red in tooth and claw

• 残酷无情；血淋淋；决不宽容
  involving opposition or competition that is violent and without pity
  1. nature, red in tooth and claw
     残酷无情的大自然

by the skin of your teeth

• 刚好；勉强
  if you do sth by the skin of your teeth , you only just manage to do it

have a sweet tooth

• 爱吃甜食
  to like food that contains a lot of sugar

noun

1. a means of enforcement
   1. the treaty had no teeth in it

2. toothlike structure in invertebrates found in the mouth or alimentary canal or on a shell

3. something resembling the tooth of an animal

4. one of a number of uniform projections on a gear

5. hard bonelike structures in the jaws of vertebrates