補充，有許多人會把保證英文與 promise（聽發音）這個單字的意思搞混，promise 的意思是承諾，例如承諾某事情英文寫成「promise+事情」，承諾與保證是不一樣的唷！
保證英文造句練習
Household electrical appliances should have a sold guarantee.家電產品都要有售後保證。
This brand of car has five quality assurance.
這個品牌的車子有五年品質保證。
No power, do not just make a guarantee.
沒有實力就不要隨便做出保證。
You can guarantee that this investment will make money?
你敢保證這筆投資會賺錢嗎？
Do not arbitrarily believe that manufacturers guarantee of goods.
不要隨意相信廠商對商品做的保證。
Peggy confident assurance that they can achieve the performance objectives.
Peggy 很有信心的保證自己可以達到業績目標。
We're looking for ensure the marketing effectiveness company.
我們想尋找能夠保證成效的行銷公司。
Nobody can guarantee what will happen in the future.
沒有人能保證未來會怎麼樣。