Your unsuspecting target will have a hard time 'timing' the location of the sound because the beeps will vary in intervals ranging from 2 to 8 minutes.

您不知情的目标将很难有一个'时间'声音的位置，因为不同的蜂鸣声将在2至8分钟不等间隔。

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What you can do: Program a break reminder into your smartphone, heed the beeps, and grab a friend for coffee in the office kitchen. Don't feel guilty for slacking off;

你可以做的是：在你的智能手机上设置一个休息提醒，注意提醒铃声，然后拉上一个朋友去办公室茶水间喝喝咖啡。

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The microwave beeps to let you know when it has finished.

微波炉烹饪完毕时会发出哔哔声提醒你。

《牛津词典》

The brokerage declines to answer questions about the origins of the tapes or the beeps.

FORBES: Magazine Article

The questions: Who made the tapes, who knew about them and how did the beeps get there?

FORBES: Magazine Article

Lipner blames Spartis for the taping, saying the equipment he used may have added the beeps later.

FORBES: Magazine Article