他刚放下电话，门铃就响了起来。

He had scarcely put the phone down when the doorbell rang.

《牛津词典》

训练过的犬提醒主人对如门铃，烟雾警报器和电话铃声这些重要声音提高警觉。

The trained canines alert their owners to important sounds, such as doorbells, smoke alarms and ringing telephones.

youdao

一部可视电话要比门铃好用多了，你可以直接看到谁在门外。

A video door phone provides more than a doorbell — you get a picture of who's at the door.

youdao