讨论者

例句：

1. 1. He is a renowned expert in the field of quantum physics.
   他是量子物理学领域的著名专家。
2. 2. The team discussed their strategies for the upcoming competition.
   团队讨论了他们即将参加比赛的策略。
3. 3.The professor was the primary discussant during the meeting.
   教授是会议的主要讨论者。