tooth

noun

1. a means of enforcement

e.g. 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
used for biting and chewing or for attack and defense

1. 牙;齿
Your teeth are the hard white objects in your mouth, which you use for biting and chewing.

e.g. She had very pretty straight teeth...
她有一口漂亮整齐的牙齿。
e.g. 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. 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.

e.g. The front cog has 44 teeth.
前齿轮有 44 个齿。

3. (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.

e.g. 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。
e.g. 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. 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.

tooth在线翻译

e.g. Both sides were armed to the teeth.
双方都全副武装。

6. 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.

e.g. ...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
e.g. 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. 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.

e.g. Their voices set your teeth on edge.
他们的声音让你浑身不舒服。

8. 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.

e.g. He fought tooth and nail to keep his job...
他竭尽全力保住自己的工作。
e.g. 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. 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.

e.g. This role gave her something to get her teeth into...
这一角色让她全情投入其中。
e.g. 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. 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.

e.g. 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。
e.g. 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. 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.

e.g. 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. 爱吃甜食
If you have a sweet tooth, you like sweet food very much.

e.g. 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
to give one's eye teeth for something -> see eye
to gnash one's teeth -> see gnash
to grit your teeth -> see grit
a kick in the teeth -> see kick
by the skin of your teeth -> see skin

1. 牙：对烤瓷冠相邻的天然牙(Tooth)与烤瓷冠测色(Po.Crown),本试验仅采用色差(Shade)的差值,反应烤瓷冠与天然牙颜色的接近程度,差值越小,烤瓷冠与天然牙颜色越接近,所以利用Shade Eve电脑比色仪,可以比较准确与客观地反应烤瓷冠的颜色.

2. 齿：例如有些狗(dog)狗(dog)牙齿(tooth)或牙龈长了脓包,嘴周围发炎都会很不配合会抓挠着把美容(features)师的推子推开. 让狗(dog)狗(dog)安静的有控制性的看看推子,闻闻气味,然后听听其声音. 给狗(dog)狗(dog)梳毛的时候让推子在狗(dog)狗(dog)身边转动,

3. tooth的近义词

3. 牙,牙齿：但如果置之不理,狗会在年轻时就开始掉牙,牙齿(tooth)的护理(take care of)应从幼年开始. 这里介绍两种刷牙方法:方法一是用软或消毒纱垫替狗狗抹净牙齿(tooth),然后用药棉浸以大蒜汁涂擦牙齿(tooth)及牙龈,发现齿缝中留有残存的食物,