英语词汇“prolong the period of validity”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	prolong the period of validity
释义	prolong the period of validity 基本例句延长有效期 As its expiration, the agreement may be modified or the period of validity may be extended through mutual consultation.协议期满后，通过协商，可予修改或延长有效期。
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