英语词汇“mental retardation”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	mental retardation
释义	mental retardation a developmental disorder characterized by a subnormal ability to learn and a substantially low IQ. [1900-15]
随便看	control tower control unit controversial controversy controvert contumacious contumacy contumely contuse contusion Conté conundrum conurbation conure CONUS conus arteriosus conv. convalesce convalescence convalescent convect convection convection cell convection oven convective activity

英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。