The microphone converts acoustic waves to electrical singals for transmission.
波转化成电信号进行传播。
He gave a tap at the microphone before speaking.
他在讲话前先轻叩了一下扩音。
He used a microphone so that everyone could hear him.
"他使用扩音,使人人都能听见他的讲话。"
His accident with the microphone brought some welcome comic relief to a very dull party.
他撞上了, 这给极沉闷的聚会带来了些欢乐。
The singer used a microphone so that every one in the hall could hear him.
歌手用了, 以便大厅里的每一个人都能听得见。
Cameras and microphones at the ready, they waited for the new President to appear.
摄影机和都已就位，就等新总统出现了。
She behaved naturally before the microphone.
她在话筒前表现自然。
"Meanwhile, a microphone, which was lowered into the mine two hours ago, has enabled the men to keep in touch with the closest relatives."
"与此同时,两小时前放进去了一只,使这些人能与他们最亲近的亲属保持联系。"
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