爱华网外方与客户的验收证书上同时出现了guarantee和warranty，这两个词有什么不同吗？搜索了半天，找到一些答案，却也只懂了个模棱两可。不过还是试着把有益于理解的部分翻译了一下：
（1）Yahoo Answers:
What's the difference between a guarantee and a warranty?
A guarantee:
A warranty:
（2）以下答案出自：http://recomparison.com/comparisons/100597/guarantee-vs-warranty-what-is-the-difference/
Definition
A guarantee is a promise made by a seller to a buyer that theitem / service / product sold is of the best and freshest conditionand in the event that there is no satisfaction or when the saiditem / service / product did not live up to its promise, the selleragrees to replace it or refund the buyer’s money.
guarantee即卖方向买方承诺所售项目/服务/产品处于最佳和最新状态，若买方不满意或上述项目/服务/产品未达到承诺，卖方同意更换或退货。
A warranty, however, works like an insurance policy and workslike a legal contract. A warranty is a guarantee of repair andreplacement of an item / product or its parts should it not meetthe expectations of the buyer or should it break down andmalfunction at any time during the warranty period.
warranty类似于保险单或合同，即卖方保证，若项目/产品未达到买方期望或在warranty期间损坏和发生故障，卖方负责修理和更换该项目/产品或其部件。
Purpose
Both a guarantee and a warranty aim to protect the rights ofevery consumer.
However, a guarantee focuses on manufacture and serviceprovision, whereas warranty focuses on reselling and distribution.A company that creates televisions for example, will be liable forguarantee of their manufactured products. However, a distributor oran importer of these televisions will have to offer warranty to endusers or consumers.
guarantee侧重制造和服务提供，而warranty侧重再售和分销。例如，生产电视机的公司有责任就其生产的产品提供guarantee。而电视机的分销商或进口商则应当向终端用户或消费者提供warranty。
Another example isthe statement, “This blender has a 30-day money-back guarantee anda 12-month warranty.” It means that you can return it for repair orreplacement within the 12-month warranty period and should you findthe product performing less than it should, you can return itwithin 30 days and get your money back.
“该搅拌机30天内包退（30-day money-backguarantee），12个月内包修（12-monthwarranty）。”即你可以在12个月包修期内，将产品返回修理或更换；如果发现产品未达到要求，可以在30天内退货并索回钱款。此时，可以得出结论，warranty即包修/保修，而gurantee则类似于我国的“三包”，且更侧重更换与退货。
Costs
There is simply no cost for a guarantee. A guarantee can beconsidered as a legal contract but without any payment. Therefore,it is given freely. However, a warranty attracts charges as aninsurance policy would. This is why, in order to make a warrantylegally viable, a customer needs to pay for the product first. Itcan then be used as a legal instrument which, depending on itsstrength, can subject the seller to lawsuits if they do not complywith said promise (which is repairing and replacing ofarticles).
Summary
（3）WiKi Answers
According to the 1985 MossMagnuson Act, warranty and guarantee are the same thing.
根据1985年颁布的Moss MagnusonAct，warranty和guarantee是相同的。
A guarantee is a document toprotect consumer rights. It is a promise by a seller with a buyerfor complete replacement of the item/ article or product; usuallyguarantee is valid for a fixed peri od of time. It has a legalstatus, even if we do not pay for or it was offered free of cost bya seller.
guarantee是用于保护消费者权利的文件，是卖方向买方做出的更换整个项目/物品或产品的承诺；通常guarantee具有一定的有效期，由卖方免费提供，即使不付费，仍具有法律地位。
Warranty is also a documentthat protects consumer rights. It is more or less like insurancepolicy for that we have to pay certain amount to come into legalcontract. So on the basis of this legal bond the company can betaken to court if it does not bound what has been agreed in thewarranty document. Warranty covers only repair of the article.
Warranty也是保护消费者权利的文件，类似于保险单，必须支付一定费用才能生效。具有法律效力后，若公司未履行文件中规定的义务，则可能被诉诸法庭。warranty只涵盖物品的维修。
Guarantee is more inmanufacture, Warranty is more in distribution and reselling parts;for example, a company manufacture a scooter is liable formanufacture guarantee,on the other hand, some importer ordistributor resell the products will use warranty
Guarantee更多来自于制造商，而warranty更多来自于分销商和零售商；例如，一家电动车厂家应提供生产guarantee，而再售该产品的进口商或分销商则应提供warranty。
A guarantee is giving you their word (kinda like an empty promise.)A warranty is in writing that they will correct any problem withinthe scope of the warranty. Take a warranty over a guaranteeanytime.
