orthodontics
noun [ U ] medical specialized uk/ˌɔː.θəˈdɒn.tɪks/ us/ˌɔːr.θoʊˈdɑːn.t̬ɪks/
正牙治疗,口腔正畸
the job or activity of correcting the position of teeth and dealing with and preventing problems of the teeth
英汉双解词典收录81607条英汉双解翻译词条,基本涵盖了全部常用单词的读音、翻译及用法,是英语学习的有利工具。