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- to clench one's teeth 咬紧牙关
- Clench one's teeth;clenched my fists in anger. 咬紧牙关；愤怒地握紧我的拳头
- His hands continued to clench and unclench. 他的双手反复地攥紧又松开。
- It is difficult to scale off the tartar on the inside of one 's teeth. 剔除牙内表面之垢十分不容易。
- He had to clench his teeth to stop himself from shouting with delight. 他咬住牙，不让自己因喜悦而喊出来。
- When one is very angry, he is used to clench his fists. At the sametime he might close his mouth tightly and clench his teeth. 当一个人非常生气或感到愤愤不平时,他往往会紧握拳头,有时还会咬紧牙关,瞪着眼睛。
- Helen' s teeth protrude too far. 海伦的牙齿太突出了。
- Cause the bite just matches with John Jr.'s teeth. 因为那个伤口正好和小强的牙齿吻合!
- Cause the bite just matches with John Jr.’s teeth. 因为那个伤口正好和小强的牙齿吻合！
- to clench one's fist 紧握拳头
- Clench one's teeth.If he goes on driving like that, he'll end up dead. 他要是继续这样开车,早晚得死于非命。比如说
- A single blow ripped out two of his opponent' s teeth. 他一拳击落了对手的两颗牙。
- The doctor told him to relax and not to clench his hands like that. 医生告诉他放松自己，别像那样握紧拳头。
- The father has eaten sour grape, and the children 's teeth are set on edge . 父亲吃了酸葡萄，子女牙齿也发酸。
- clench one's teeth and not utter a sound 咬紧牙关，一声也不叫唤
- clench one's teeth and refuse to say anything 咬紧牙根不说
- clench one's teeth and strain one's muscles 咬住牙绷住劲
- We can also guess that such a toothbrush may hurt the man’s teeth as well as his mood , inconveniencing him greatly. 我们可以猜到这支牙刷不仅可能伤害这个人的牙齿，也破坏了他的心情，给他带来了很多不便。
- It may be the deal that Canada has to clench its teeth to endorse.But the federal opposition parties are wrong to denounce the softwood agreement with the United States as a blatant sellout. 这或许的确是加拿大不得不咬着牙勉强接受的一项协议，但反对党们因此而谴责保守党政府与美国达成软木材协议是明显的卖国行为却是极其错误的。
- A method and a system for stereo positioning and tracking human s teeth are introduced. 介绍了一套对真人牙体进行立体定位、跟踪的方法和系统。
