I chaired that 7:30 meeting, but as WHCF, you're not allowed the luxury of showing up just before the staff meeting.

我主持那个7：30的会议，但作为主任，我不可以在会议前,才出现在办公室。

普林斯顿公开课 - 国际座谈会课程节选

Is that what you continued to do but you chaired every day ? with the senior staff meeting?

这是你每天做的事吗,你每天都要,主持高级职员会议？

普林斯顿公开课 - 国际座谈会课程节选

I chaired the committee at the time you were applying.

你们申请入学的时候我是委员会的主席。

麻省理工公开课 - 固态化学导论课程节选