I sat behind you in chem lab.

上化学实验课时我坐在你后面。

Excuse me? Is this a chem lab?

抱歉 这里是化学实验室吗？

How fast can you get to the chem lab?

你多快能赶到化学实验室？

Why don't we go upstairs to the chem lab?

要不我们到楼上的化学实验室去吧？

He says it was for chem lab, but Noel was on the phone with someone all night at Caleb's birthday party.

他说是跟化学实验室有关，但凯勒的生日派对上诺埃尔一整晚都在打电话。