现在大多数人都知道哒哒哒哒这个前奏。

Now most people know the da da da dah introduction.

youdao

小号响亮地回答哒哒哒哒哒哒哒；

The trumpet answers it with loud ratting sound.

youdao

嘀嘀哒哒的马蹄声越来越近就停在小店门前。

The clip-clop of horses' hooves came closer and stopped right in front of the inn.

youdao

So, I've never heard the click-click-click-click-click, and we might bring a Geiger counter in here some time later in the semester so we can check all of you out, and hopefully we won't hear any when we do that either.

但我知道如果,你听到哒哒哒的声音，就表明你有麻烦了，我从来没听到过哒哒哒的声音,也许以后我可以带一个,来课堂上检测你们每一个人，希望我们不会听到哒哒哒的声音。

麻省理工公开课 - 化学原理课程节选

And this is exactly what happened with Marsden who discovered that when he shot the alpha particles at the gold foil he detected something on his detector that click, click, click went a little bit faster.

而对于Marsden来说,就是这样，他发现当他用alpha粒子,轰击金箔的时候，探测器哒哒哒得更快了,他发现一分钟。

麻省理工公开课 - 化学原理课程节选