kick off

kick off（足球比赛等）开球，踢开，踢掉（某物），开始讨论（或会议、项目等）

【例句】

◆ She kicked off her shoes as soon as she came into the door．一进门她就把鞋踢掉了。 

◆ Let's begin to kick off the discussion．我们开始讨论吧。