One was silence. The other was the recorded sound of a coral reef.

VOA: special.2010.08.10

There was never a sound beside the wood but one, And that was my long scythe whispering to the ground.

树林边静悄悄，只有一点声音，那是我的长镰在对大地低语。

耶鲁公开课 - 现代诗歌课程节选

Think of one line. Think of a group of lines Here's one sound.

想想一行乐句是什么样的,一组呢,这是一个音

耶鲁公开课 - 聆听音乐课程节选

One sign of it is a wheezing sound when the person breathes.

VOA: special.2010.06.23

So, if you're a native monolingual speaker of English you hear speech and each sound you hear is categorized as falling into one of those forty morphemes--sorry, phonemes.

如果你是英语母语的单语说话者,你听到一段演讲,你所听到的每个声音,都被归类为这四十个音位中的一个

耶鲁公开课 - 心理学导论课程节选

He fashioned a solid body guitar from one piece of wood, and attached some electronic devices to amplify the sound.

VOA: standard.2009.08.14