The President nominated me his representative at the meeting.

总统任命我为他的出席会议。

I sent my representative to the meeting.

我派参加会议。

China sent a large delegation to the meeting.

中国派个很大的团参加会议。

The conference delegates intermingled with each other over coffee when it broke off.

会时会议们混在一起一面喝咖啡一面交。