"So,you pile up all this Democrat spending, all their borrowing,all their debt, you add it to their government takeover of health care, their 'cap and trade' national energy tax and their continued bailouts.

VOA: standard.2010.02.06

So we can do this for any final charge we have, if we have a molecule that has a charge of plus 2, then all of the formal charges should add up to plus 2 and so on.

对于任意净电荷的情况,我们都可以这样做，比如假设我们有一个带两个正电荷的分子，那么所有的形式电荷加起来应该等于正二，等等。

麻省理工公开课 - 化学原理课程节选

So again, we should be able to check all of our formal charges and make sure they add up to 0, which they do, and that makes sense, because we have a neutral atom in terms of thionyl chloride.

因此同样地，我们可以检验一下,我们所有的形式电荷是否正确,确保它们加起来等于零，而它们确实是这样，这是合理的，因为亚硫酰氯是一个中性原子。

麻省理工公开课 - 化学原理课程节选

Suppose I take a number. I'd like to add up all the digits inside of the number.

我可以用到刚刚提到的工具,来实现这个功能。

麻省理工公开课 - 计算机科学及编程导论课程节选

We have to add it all up so it's not just numbers, three against one; it's also all of those people at home.

得把这些加起来考虑,所以就不只是这个数字，三比一;,还要加上这三人的家人。

耶鲁公开课 - 公正课程节选

For example, one of the experiments we do is measure the magnetic field of current coil, and after we do the experiment, we all have a passive visualization that shows the same experimental set-up, except we add to that.

比如，我们做的一个实验就是,测量电线圈的磁场，在我们做完实验之后，我们都感受到了一个直观化的过程,它展现了同样的实验过程，只是那是我们加的。

麻省理工公开课 - 媒体、教育、市场课程节选

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