tooth
/tuːθ/
n.
标准词条
CET-4
一句话记住
牙齿;齿
释义与例句
n.
牙齿;齿
one of the hard white structures in the mouth used for biting and chewing, or a similar pointed part on a tool
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The dentist filled a small hole in her back tooth.
牙医填补了她后牙上的一个小洞。
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He broke a tooth while playing rugby last weekend.
上周末他打橄榄球时磕断了一颗牙。
展开其余 1 条例句
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One tooth of the old saw was bent and would not cut properly.
这把旧锯有一个锯齿弯了,无法正常切割。
词源与构词
记忆钩子
tooth 的复数是不规则形式 teeth;牙痛是 toothache,牙刷是 toothbrush,刷牙常说 brush your teeth。
词族与关联词
词族(同一词根派生出的不同词性或形式)
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toothache 牙痛名词,指牙齿或其周围部位的疼痛,通常不可数。
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toothbrush 牙刷可数名词,由 tooth 和 brush 构成,指清洁牙齿用的刷子。
易混词(形近或义近,注意区别)
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teeth 牙齿(tooth 的复数)tooth 是单数,表示一颗牙或一个齿;teeth 是不规则复数,表示多颗牙或满口牙。不能说 two tooths,应说 two teeth;复合词 toothbrush 通常保留单数 tooth。She brushes her teeth twice a day and had one damaged tooth repaired. 她每天刷两次牙,并修补了一颗受损的牙齿。
常见搭配
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brush your teeth 刷牙You should brush your teeth carefully before going to bed. 睡觉前你应该仔细刷牙。
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a wisdom tooth 智齿He had a painful wisdom tooth removed last Friday. 他上周五拔掉了一颗疼痛的智齿。
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tooth decay 龋齿;蛀牙Regular dental checks can help detect tooth decay early. 定期牙科检查有助于及早发现龋齿。