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。
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。
那也许敲响了警钟。
有没有帮你想起一些什么呢？
敲响警钟了？
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？
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。
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。
Shawn : No. I'm sorry. Your face doesn't ring a bell.
尚伟：我很抱歉。你的脸没有使我想起什么。
There is no sign on the door and you ring a bell to get in.
门上没有招牌，按门铃后，有人给你开门。
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。
If you could just find one setup ring a bell, that would be good enough.
如果你能找到一个安装门铃，那将是足够的。
The second-choice name will ring a bell with electric car industry watches.
这个第二选择会让电动汽车行业观察人士感到熟悉。
Buckle ring a bell when the young sixteen year-old young, I ushered in my high school.
当青春的钟扣响十六岁的花季，我迎来了我的高中。
Ask any woman who is trying to do it all and she'll admit to a few slip-ups in the memory department (forgotten appointments, lost keys, missing cell phone-ring a bell?)
问问任何一个想把所有事都办好的女人，她都会承认在记忆方面会出些小小失误(被忘记的约会、丢了的钥匙、失踪的手机——是不是对你敲响警钟了？)
铃响了。
One evening in Los Angeles, someone (ring) the bell of a house.
曾经有一天晚上在洛杉矶，有人按响了一所房子的门铃。
Instead of an alarm button by his bed, he would ring an old cow-bell that I'd bought as a kid on holiday in Liechtenstein.
除了床上的警报按钮，父亲还摇晃一个旧牛铃。这个牛铃是我孩提时代在列支敦士登度假时买的。
Instead of an alarm button by his bed, he would ring an old cow-bell that I'd bought as a kid on holiday in Liechtenstein.
除了床上的警报按钮，父亲还摇晃一个旧牛铃。这个牛铃是我孩提时代在列支敦士登度假时买的。
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