满期的英文：
expire
To be returned at the expiration of the date
满期归还
v. 失效，终止，到期 ；届满；逝世
At the expiration of a year the governor was transferred
但三个月也过去了，三个月之后又过了六个月。
Aspire to inspire before you expire.
断气之前，随时追求新的生命力。
Both will expire at the end of the year.
这两项政策将于今年底到期。
The limitation period for criminal prosecution has expired.
犯罪已过追诉时效期限。
This contract shall be terminated on the expiration date.
劳动合同期满，即行终止。