1、
Handheld microphones usually have their low frequencies intentionally rolled-off.
手持话筒通常有意的做低频衰减.
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2、
A loudspeaker and a microphone are set up facing each other a few metres apart.
一个扬声器和一个话筒建立相隔几米的对放.
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3、
Additional direct input devices include the mouse, input pen, touch screen and microphone.
此外,鼠标 、 输入笔 、 触摸屏幕和话筒也都是输入设备.
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4、
Blake held his handkerchief over the mouthpiece to muffle his voice...
布莱克把手绢包在话筒上，以使自己的声音听起来模糊不清。
《柯林斯高阶英汉双解学习词典》
