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
  1. The dentist filled a small hole in her back tooth.
    牙医填补了她后牙上的一个小洞。
  2. 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
  1. 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)
  • toothache 牙痛
    名词,指牙齿或其周围部位的疼痛,通常不可数。
  • 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)
  • 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
  • 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。
  • 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。
  • 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。