speaker可数，复数形式是speakers
speaker
美/ˈspiːkər/英/ˈspiːkər/
n.演讲者；扬声器；说话者；说某种语言的人
双语例句:
In general, theSpeakerdoes not have a vote unless there is a tie vote.
议长一般没有投票权，除非发生平票的情况。
The chief function of theSpeakeris to preside over the meeting and mediate disputes between members of parliament.
议长的主要职权是主持会议，以及调节议员间的***。
