developmental retardation

基本解释

Symptoms can vary from normal to severe developmental delay or mental retardation.
症狀變化較大，可以是正常的或嚴重的發育延遲或智力低下。
A person with cerebral palsy may have average intelligence or can have severe developmental delays or mental retardation.
腦癱患者可能會擁有平均智力水平，也可能智力發育極爲遲緩。
However, muscle spasms, hyperreflexia, refractory epilepsy, developmental delay, and mental retardation are common in children afflicted with the disorder.
然而，肌痙攣、反射亢進、頑固性癲癇、發育遲緩、智力低下是常見的症狀。

So, it's not really a developmental ... it's not really a developmental delay in the way that it might make sense to think about certain forms of retardation.
孤獨症竝非發展延遲,不應儅把它理解爲,某種形式的發育遲緩
耶魯公開課 - 心理學導論課程節選