Small little achievements make you feel good, and they add up to big achievements.

小小的成就会使您开心，累积而成就是大的成就。

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Only when all the percentages are totaled for the entire report do they add up to 100%.

只有在合计整个报告的所有百分比时，百分比总计才等于100%。

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Essentially, they add up to something that we don't do enough of today: critical thinking.

根本上说，这些原则其实就是我们今天做的不够的批判性思考。

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"It's so simple. With a two-liter bottle you add sugar, you add extract, you add a small amount of yeast and water, cap it up and in two days they've got root beer.

VOA: special.2011.08.01

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

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

They add up to only a tiny fraction of the price that has been paid for our freedom.

CNN: Inaugural Address

Each individual bank fee may seem small, but taken together they add up.

FORBES: Become Allergic To Bank Fees

But as strong as these domestic niches may be, they add up to just a few per cent of total sales.

ECONOMIST: American textiles