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- to clench one's teeth 咬緊牙關
- Clench one's teeth;clenched my fists in anger. 咬緊牙關；憤怒地握緊我的拳頭
- His hands continued to clench and unclench. 他的雙手反覆地攥緊又鬆開。
- It is difficult to scale off the tartar on the inside of one 's teeth. 剔除牙內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，不讓自己因喜悅而喊出來。
- 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. 當一個人非常生氣或感到憤憤不平時,他往往會緊握拳頭,有時還會咬緊牙關,瞪著眼睛。
- Helen' s teeth protrude too far. 海倫的牙齒太突出了。
- Cause the bite just matches with John Jr.'s teeth. 因為那個傷口正好和小強的牙齒吻合!
- Cause the bite just matches with John Jr.』s teeth. 因為那個傷口正好和小強的牙齒吻合！
- to clench one's fist 緊握拳頭
- Clench one's teeth.If he goes on driving like that, he'll end up dead. 他要是繼續這樣開車,早晚得死於非命。比如說
- A single blow ripped out two of his opponent' s teeth. 他一拳擊落了對手的兩顆牙。
- The doctor told him to relax and not to clench his hands like that. 醫生告訴他放鬆自己，別像那樣握緊拳頭。
- The father has eaten sour grape, and the children 's teeth are set on edge . 父親吃了酸葡萄，子女牙齒也發酸。
- clench one's teeth and not utter a sound 咬緊牙關，一聲也不叫喚
- clench one's teeth and refuse to say anything 咬緊牙根不說
- clench one's teeth and strain one's muscles 咬住牙繃住勁
- We can also guess that such a toothbrush may hurt the man』s teeth as well as his mood , inconveniencing him greatly. 我們可以猜到這支牙刷不僅可能傷害這個人的牙齒，也破壞了他的心情，給他帶來了很多不便。
- 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. 這或許的確是加拿大不得不咬著牙勉強接受的一項協議，但反對黨們因此而譴責保守黨政府與美國達成軟木材協議是明顯的賣國行為卻是極其錯誤的。
- A method and a system for stereo positioning and tracking human s teeth are introduced. 介紹了一套對真人牙體進行立體定位、跟蹤的方法和系統。
