失效的英文

失效 lose efficacylose effectivenesscease to be effectivebe no longer in forcebecome invalid

有效日期：Expiration Date失效 ： expire / xxx is expired.

1 become invalid (不再生效)2 expire（过期）3 lose effect（不再有影响/效果）

Invalid expired很高兴为你解答，希望能帮到你，祝学习进步，有问题欢迎追问，满意请点右上角或采纳为满意答案，谢谢！*^_^*