Expiration n date失效期;有效日期
Food Expiration Date Alarm食品有效期警报器
certificate expiration date凭证届满日期
No expiration date无有效期限;无产品有效日期
Set An Expiration Date设定一个有效期限
Defects And Expiration Date缺陷和有效期
Tax payment expiration date税款限缴日期
account expiration date账号失效日期;密码过期时间
drug expiration date药品有效期
N-COUNT（可数名词） The expiration date on a food container is the date by which the food should be sold or eaten before it starts to decay. 保质期 [美国英语]
But soda past its expiration date goes flat and loses much of its taste.
但是过期的苏打水跑气，味道也会大打折扣。