B1 a person who gives a speech at a public event发言者;演讲者
More examples
In his opening salvo the speaker fiercely attacked the government's record on healthcare.
She is a confident and self-possessed public speaker.
The speaker sidestepped the question by saying that it would take him too long to answer it.
The speaker was applauded as he tore apart the prime minister's policies.
A huge throng had gathered round the speaker.
B1 someone who speaks a particular language(说某一特定语言的)说话者;演讲人
A2 the part of a radio, television, or computer, or of a piece of electrical equipment for playing recorded sound, through which the sound is played. A speaker can be part of the radio, etc. or be separate from it扬声器,喇叭
the person who controls the way in which business is done in an organization which makes laws(议会等立法机构的)议长
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