3 sentences

1. 那哔哔声是什么声音？

   nà bì bì shēng shì shén​me shēng​yīn?

   What's that beeping sound?

   Source: OpenSubtitles

2. 听到哔声了吗？

   tīng dào bì shēng le ma?

   Did you hear a beep?

   Source: OpenSubtitles

3. 请在哔哔声之后留言。

   qǐng zài bì bì shēng zhī​hòu liú​yán.

   Please leave a message after the beep.

   Source: AI Challenger 2017