推后的英文：
retard

Submission of these reports may be advanced or postponed a few days, but the reasons must be given.
交报告的日期可以提前或推后几天，但要说明理由。

retard thespark,eg of an engine
使点火延迟（如发动机的）.

retard the mechanism,eg of a clock
使机械装置减速（如时钟的）

Her sister works in a school for the retarded and handicapped.
她的姐姐在一所弱智和残疾人学校工作。

Melamine is used in plastics, fertilizers and flame retardants.
三聚氰胺是生产塑料、料和灭火剂的一种原料。

I called you a retard, and I took it back.
我叫你小傻瓜了，我收回。