Exclusivity Expiration 排他性保护期例句The expiration of contract is 合同快到期了。When is the expiration of your driving license?你的驾驶执照何时到期？An expiration, especially of a contract or an 满期终止，特别是合同或协议的终止This ticket has passed its expiration date, and so it is now 这张票已过了有效期，现在作废了。
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