The President summoned all the state governors to a conference on education. [+ on]

总统召集各州州长召开了一次教育研讨会。

...the Conservative Party conference.

保守党大会

Last weekend the Roman Catholic Church in Scotland held a conference, attended by 450 delegates.

上周末，苏格兰的天主教会举行了一次会议，450名代表与会。

They sat down at the dinner table, as they always did, before the meal, for a conference.

他们在餐桌旁坐下，和平常一样，吃饭之前要开个会。

Her employer was in conference with two lawyers and did not want to be interrupted.

她的老板在和两位律师谈事情，不想有人打扰。