I've got one test there, and then I've just got one thing to do here, which has got a subtraction and a multiplication.

这儿有一个比较,然后在一个基本步骤里,做了一个减法和一个乘法两个基本操作。

麻省理工公开课 - 计算机科学及编程导论课程节选

All right, so now let's see how we execute it, and do the calculations that allow us to calculate this. So, one, what's delta H in step one?

好，现在我们看看怎样操作它，怎样进行计算，第一步,步骤I的ΔH是多少？

麻省理工公开课 - 热力学与动力学课程节选