In order to have the maximum effect, the cues should be small, discrete, specific-like the bell Pavlov rang for his dogs.

为了达到最佳效果，这些线索应该是微小、分散并且很特别——就像巴普洛夫的铃铛。

youdao

The bell rang, and, as when I had begun this story, there were a good ten to fifteen seconds when no one in the classroom moved.

铃声响起，当我开始这个故事，大概足足有十到十五秒钟，教室里所有人一动也不动。

youdao

I arrived in my classroom ten minutes before the bell rang, just as the first of my students trickled in.

铃响前十分钟我提前到了教室，最早的那批学生正陆陆续续进来。

youdao

Often,when the fire bell rang, other men in the city rushed to help put out the fire.

VOA: special.2009.05.17

Or maybe it was more like Rocky going into the ring with Clubber Lang, unable to focus on the fight as his beloved Mick lay dying in the training room from the heart attack suffered just before the bell rang for the first round.

FORBES: Debate Night-Who Was That Masked Man?

For me, they rang the bell in early December when the IMF cobbled together a deal to bail out South Korea.

FORBES: Why Korea rang my bell

In a recent interview before he rang the closing bell at Nasdaq, Sauter gave me a lengthier definition and even thanked the high-frequency traders for making the market a better place.

FORBES: Vanguard's Gus Sauter Thanks High-Frequency Traders