形容词

1. Her younger daughter was mentally retarded.
她的幼女是一个弱智儿童。

1. 智力迟钝的, 发展迟缓的：contract of hire 租用契约 | retarded 智力迟钝的, 发展迟缓的 | yard trap 集水井存水隔间, 进水口防臭设备

2. 反应迟钝的：53. intriguing 有趣的,迷人的 | 54. retarded 反应迟钝的 | 55. discreet 谨慎小心的

3. 迟钝：retardatory 使迟延的 | retarded 迟钝 | retarder 阻滞剂

1. 智力迟钝的;智力发育迟缓的
Someone who is retarded is much less advanced mentally than most people of their age.

e.g. ...a special school for mentally retarded children.
为智障孩子设立的特殊学校

noun

1. people collectively who are mentally retarded

e.g. he started a school for the retarded

Synonym: mentally retardeddevelopmentally challenged