延長保修期 extend the period: 延長……期限guarantee period: 保修期; 保用期; 保證期; 保質(zhì)期; 擔(dān)保期限period of guarantee: 保證期限, 擔(dān)保期extend a payment period: 延長支付周期extend the contract period: 延長合同期限下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯