All the students replied in chorus to the teacher's question.所有学生齐声回答老师的问题。The whole class replied in chorus to the teacher's questions.全班学生齐声回答老师的问题。The phones in the room rang in chorus.房间里的几部电话同时响了起来。When I asked questions, they answered up in chorus.我提问题时，他们迅速齐声回答。