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- 你查询的单词是：retardation （[ ˌri:tɑ:'deiʃən ]）
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- 解释： n. 智力迟钝,精神发育迟缓
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- 例子： 1. A person of profound mental retardation having a mental age below three years and generally being unable to learn connected speech or guard against common dangers. The term belongs to a classification system no longer in use and is now considered offensive.
低智商者指智力水平在三岁小孩以下，听不懂连贯话语，也不会提防普通危险的智力有严重障碍的人。这个词现在已不用来区别人的类型，现在被认为有对人不友好的意思
2. A person of mild mental retardation having a mental age of from7 to12 years and generally having communication and social skills enabling some degree of academic or vocational education. The term belongs to a classification system no longer in use and is now considered offensive.
痴愚者一个人智能迟缓发展，仅具有7岁到12岁的智能，一般在一定程度的学术或职业教育后能够进行交流和掌握社会技术。这个词是一个集合概念，现在不再使用，并被视为带有侮辱意味
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