保证英文guarantee
guarantee
n. 保证；担保；保修单；保用证书；起保证作用的事物
v. 保证；担保；保障；提供（产品）保修单（免费掉换或修理有问题的产品）；使必然发生；确保
We are unable to guarantee sufficient supplies of raw materials.
We had to pledge our house as a guarantee while getting the loan.
I guarantee that he will come to court.
Tonight's victory ensures the team's position in the final.
