作保证的人 guarantor

不作保证 WOG Without guarantee ; exclusion of warranty

工作保证 Ensure that work ; Work to ensure that ; To ensure the

以债券作保证的 bonded

人质作为保证的人 a hostage ; A person serving as security

使作出保证 commit

工作质量保证 workmanship guarantees

质量保证作业程序 quality assurance operating procedure

你作了保证预订 you've made a guaranteed reservation

保证工作周 guaranteed working week