The rats had been conditioned to ring a bell when they wanted food.

这些老鼠已经过训练，想吃食物时就会按铃。

《牛津词典》

This often proves difficult and can take a long time so I will ring a bell so that everyone knows it's time to eat! Hopefully this will speed things up a bit.

事实证明这很困难并可能需要很长时间，所以我会提醒每个人，是时候吃东西了！希望能加快速度。

youdao

Men can ring a bell to quit at any time, and two out of three do so.

如果不能忍受，可以随时摇铃退出，事实上三分之二的人会这样做。

youdao

And of course it exists in a semiotic relationship to a white light over a street door which means "this is my house; if you wish you can ring the bell but I'd just as soon you stayed out."

当然它是存在于一个语义篇中的,而临街门上的白灯则意味着,这是我的房子，你要进来必须按门铃,但是你最好别进来“

耶鲁公开课 - 文学理论导论课程节选

Everyone across the UK was asked to ring a bell as loud as possible for three minutes at 08:12 BST on 27 July.

BBC: UK

If a leper wanted to approach a town, he had to do so at night and ring a bell to warn people of his presence.

NEWYORKER: Rich Man, Poor Man

His route includes St Paul's Cathedral and a trip across the river to Southwark, where a lunchtime bell calling people to prayer is due ring out in Borough Market.

BBC: Archbishop of Canterbury to miss Pope inauguration