retard

retard
verb
  1. [with obj.]delay or hold back in terms of progress, development, or accomplishment
    拖延;使减速;妨碍,阻碍
    his progress was retarded by his limp.
    由于腿瘸,他走不快。
noun
  1. (offensive)a mentally handicapped person (often used as a general term of abuse)
    (冒犯)智力迟钝者(常作辱骂用语)
常用词组
in retard
  1. (Brit. formal)behind or late in terms of development or progress
    (英,正式)处于落后状态
    I was in retard of them in real knowledge.
    我在实际知识方面落后于他们。
派生
retardation
noun
retarder
noun
retardment
noun
  1. (rare).)
语源
  1. late 15th cent.: from French retarder, from Latin retardare, from re- 'back' + tardus 'slow'
英语宝典
考试词汇表