speaker

演讲者；扬声器；说话者；说某种语言的人英释nnsomeone who makes a formal speech to a group of people

1 native speaker,说母语的人，说本族语的人

2 guest speaker,特邀发言人，客席讲者；嘉宾演讲人

3 speaker system,扬声器系统

4 public speaker,演讲者；发言人

5 keynote speaker,主讲人；大会发言人；主讲嘉宾

6 loud speaker,扩音器，扬声器；增高话音

7 speaker phone,n. 免提电话；对讲电话

1 The keynote speaker (= main or most important speaker ) was Robert Venturi, the architect..主要发言人是建筑师罗伯特·文图里。