take the chair

市长没到，结果会议选举琼斯政务员担任会议主席。

The Mayor didn’t arrive and the meeting voted to ask Councillor Jones to take the chair.

担任主席的人有责任安排会议。

The holder of the office of chairman is responsible for arranging meetings.

接替他担任主席的人将参加本次会议。

His successor as the chairman will be at the conference.

担任工会主席

be the chairman of a trade union

梅根将担任该会议的主席。I’d like you to chair the meeting。

Megan will chair the meeting.