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1·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》

2·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。

3·Does this name ring a bell?

这个名字是否让你想起点什么？

4·Does the name ring a bell?

你听到过这个名字吗？

5·That might ring a bell.

那也许敲响了警钟。

6·Does that ring a bell?

有没有帮你想起一些什么呢？

7·If I were to add the word pigmy, ring a bell?

如果我加上词，矮人，听起来熟悉吗？

8·Ring a bell?

敲响警钟了？

9·It didn't ring a bell, so I asked her to explain.

我一时没有反应过来，便请她解释一下。

10·THEY rarely ring a bell at the bottom of bear markets.

熊市的底部几乎总是悄无声息地来临。