I put Helen's hand under the cool water and formed the word w-a-t-e-r in her other hand.

VOA: special.2009.11.08

I want to cool a gas with a Joule-Thomson experiment, what temperature do I have to be at?

给气体降温时,需要到达什么温度？

麻省理工公开课 - 热力学与动力学课程节选

And he's just a very like laid-back, cool, honest, good person.

他很随和，很酷，很诚实，是个不错的人。

介绍我的朋友 - SpeakingMax英语口语达人

"This is actually a really cool piece. It's done by the Rosete-Aranda Company.

VOA: special.2009.09.23

But one that I was very interested in was biology, and the reason was we did a lot of cool labs in high school, I loved doing the dissections -- it was very interesting to me to think about how different organs worked, how the heart could be a pump, how the lungs worked.

但当时我很喜欢生物学，因为我高中做了很多很酷的生物实验,我很喜欢解剖-,我觉得了解不同器官,怎么工作很有趣,像心脏怎么泵血。

麻省理工公开课 - 化学原理课程节选

On Friday,Galina Petrovna, a 64-year-old Moscow nanny, let her two year old charge cool off with a dip in a public fountain.

VOA: standard.2010.07.23

and it's all A-listers from America, and that's cool.

而且它们都是美国的一线演员，这很酷。

哈利•波特的人气 - SpeakingMax英语口语达人