英汉小词典报酬递减律returns报酬率contract报废率guaranteedstatementpaymentconservation
摘要：中文English保质guaranteeing quality保质保量both quality and quantity are guaranteed保质法law of conservation of mass保质期expiration date保质守约observe the contract and ensure the quality报表statement报酬payment报酬递减律law of diminishing returns报酬率rate of return报答repayment报废retirement报废率scrappage
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