Definition (会议)
To be engaged in a meeting or participating in a formal discussion.
开会中
I'm sorry, the supervisor is in conference right now and may not be able to return your message until later.
抱歉，主管正在开会，可能稍后才能回复您的消息。
She is unable to take your call as she is in conference.
她正在开会，无法接听您的电话。
The entire team is in conference this afternoon to discuss strategies for the new project.
整个团队今天下午都在开会，讨论新项目的策略。