"It's sort of like a world on its own. There's no other sport where you're really going up and down.

VOA: special.2009.12.09

So, if we hybridize just these three orbitals, what we're going to end up with is our s p 2 hybrid orbitals.

我们会看到现在有3个未配对的电子，可以成键。

麻省理工公开课 - 化学原理课程节选

The stuff that's inside the reacting volume, and whatever's right around it there inside the big box, it's all going to heat up.

都会升温，对吧？,在反应容器里的东西,以及大箱子里的任何东西，他们都会变热。

麻省理工公开课 - 热力学与动力学课程节选

The cost for businesses of health care have been going up and up and up.

WHITEHOUSE: Town Hall Meeting on the Economy

Demand is going up and up, and people are getting accustomed to finding that data.

NPR: Crop Cops Take to the Sky

Food prices are going up, rent is going up, wages seem to be going down.

BBC: Food bank charity: Christmas 'bleak on breadline'