retarded 是什么意思

音标：[ ri'tɑ:did ]

	adj. 发展迟缓的〔尤指智力迟钝的〕。

people collectively who are mentally retarded; "he started a school for the retarded"
同义词：mentally retarded, developmentally challenged,

relatively slow in mental or emotional or physical development; "providing a secure and sometimes happy life for the retarded"

	1.	Larvas become retarded in the mucus . 幼虫被阻留在粘膜内。
	2.	Small molecules are retarded from leaving the column . 小的分子被阻滞在层折柱上。
	3.	A retarded child needs help , not pity . 智力迟钝的孩子需要的不是怜悯，而是帮助。
	4.	A serologic reaction retards the growth of the pollen tube . 血清反应阻止花粉管生长。
	5.	Lack of science and education retards social progress . 缺乏科学和教育会妨碍社会进步。
	6.	The heart rate is regularly accelerated and then retarded . 心率有规律的加速而后减慢。
	7.	Numerous and extensive cavities retard the turbulent mixing process . 多而大的涡流区延迟了扰动的混合过程。
	8.	Numerous and extensive eddy cavities retard the turbulent mixing process . 多而大的涡流区延迟了扰动的混合过程。
	9.	Writing may retard the process of language change under certain conditions . 在某些情况下，文字可能延缓语言的变化。
	10.	China started special education for the mentally retarded children in 1979 . 中国于1979年开始对弱智儿童实施特种教育。

retarded是什么意思