It emits unpleasant high-pitched wails that are intended to disperse crowds.
这种设备可以发射出令人不悦的高频悲叹声用来驱散人群.
来源:互联网摘选Bloop [ to make the high-pitched sound of interference in a radio signal, ].
bloop [ 在收音机信号里发出高而刺耳的干扰音 ].
来源:互联网摘选He burst into a high-pitched laugh, as though he'd said something funny.
他突然放声大笑,好像讲了什么好笑的事似的。
来源:《柯林斯高阶英汉双解学习词典》If you see a bear fairly close, make human noise, not a high-pitched or animalistic sound.
如果你看到熊离你相当近, 要发出人类的声音, 不要发尖锐的或兽类的声音.
来源:互联网摘选Animals are able to hear high-pitched sounds that are inaudible to humans.
动物可以听到人类所听不到的高频声音。
来源:《柯林斯高阶英汉双解学习词典》
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