4周搞定2000+托福核心词
tooth
常考释义
The motion of a pendulum rocks this device so that it catches and then releases each tooth of the escape wheel, in turn allowing it to turn a precise amount.
钟摆为这种设备提供动力,从而使它抓住和松开齿轮上的每个齿,依次运动以保证精确度。
来源于:剑雅8-Test1n. to be long in the tooth:年老,年纪大(原指马随年龄增长牙龈退化显得牙齿长);参见:sweet tooth
Aren't I a bit long in the tooth to start being an undergraduate?
我现在才开始上大学不是有点太老了吗?
n. to fight sth tooth and nail:全力以赴争取…;竭尽全力阻止…
He fought tooth and nail to keep his job.
他竭力保住自己的工作。
n. 牙;齿【解剖】
If a tooth feels very loose, your dentist may recommend that it be taken out.
如果某颗牙松动得厉害,牙医会建议把它拔掉。
n. 口味;胃口
n. (叶缘、花瓣边缘等的)齿【植】
n. (无脊椎动物的)齿【动】
n. (梳子、锯子等的)齿状物
n. (齿轮、链轮、齿条等的)齿【机】
vt. 给···装齿
vi. (两个齿轮)啮合,咬合【机】
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