1810, "delayed," past participle adjective from retard (v.). In childhood development sense, "mentally slow," attested from 1895 (perhaps inspired by Italian tardivi).
雙語例句
1. The progression of the disease can be retarded by early surgery.
早期手術(shù)可以抑制病情的發(fā)展。
來自《權(quán)威詞典》
2. He was so slow that many thought him mentally retarded.
他遲鈍得很,許多人以為他智力低下.
來自《簡(jiǎn)明英漢詞典》
3. Her death was retarded by five years because of good treatment.
由于良好的治療,她多活了五年.
來自《簡(jiǎn)明英漢詞典》
4. China started special education for the mentally retarded children in 1979.