expiration的动词形式
回答：expiration的动词是expire，意思是“v. 到期，失效；死亡；呼气，吐气；（任期）届满”。 例句 ①When does your driving licence expire? 你的驾照什么时候到期？ ②However, most of these contracts expire this month. 不过，这些合同大部分在本月到期。 ③This was due to expire at the end of the present Congress....