tartar
noun uk/ˈtɑː.tər/ us/ˈtɑːr.t̬ɚ/
(SUBSTANCE)
[ U ]牙石，牙垢
a hard substance that forms on the teeth
(PERSON)
[ C ] old-fashioned disapproving凶暴的人，凶悍的人
a person who is often angry and unkind
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。