He says,within a week that adds up to a nice sum.

VOA: standard.2010.04.22

Sometimes the questions are worded quite differently, so I just want to sum up here the different ways they could be worded.

有时候问题表述的很不一样，所以我只是希望能,汇总不同的表述方式。

麻省理工公开课 - 化学原理课程节选

I am going to sum up the atomic orbitals that go into the molecular orbital, and they are going to have some coefficients.

我准备将原子轨道组合起来,进行分子轨道计算，这个过程还需添加一些系数。

麻省理工公开课 - 固态化学导论课程节选

So, to sum up, there are three main findings about you that come out in social psychology.

总结一下，在社会心理学里有三个,关于自我的主要发现。

耶鲁公开课 - 心理学导论课程节选

I want to try to sum up what we've learned from this discussion, but, first, let's thank John, Alex, and Julia for a really wonderful job.

我想总结一下从这场讨论中我们所学到的，不过首先谢谢约翰，亚历克斯，朱莉娅,谢谢他们的精彩表现。

耶鲁公开课 - 公正课程节选

To sum up, ingredients of humor is there has to be a target who experiences some harm.

总的来说，幽默的要素,就是要有一个承受一定伤害的目标。

耶鲁公开课 - 心理学导论课程节选

So that means if we add up all of the formal charges within the molecule, what we would expect to see is that they sum up to give a net charge of negative 1.

那么这就意味着如果我们把这个分子中,所有的形式电荷加起来，我们应该会看到它们加起来,之后得到的净电荷量为负一。

麻省理工公开课 - 化学原理课程节选