validatoryadj.validate的变形：validate['vælideit]vt.使生效，使有法律效力；使合法：In order to validate the agreement between yourself and your employer, you must both sign it.为了使你和你的雇主之间的合同具有法律效力，你们双方必须在合同上签字。批准；确认…有效：This passport has to be signed before the official can v