Many small victories add up to a big one.

积小胜为大胜。

《新英汉大辞典》

No one can fire me, and if one source of income dries up, I can always add new ones.

没有人可以炒我鱿鱼，而且，假如一个收入来源干涸了的话，我可以增加新的项目。

youdao

The only proven way to make one and one add up to two or more in this industry is through cost savings.

唯一行之有效的方法，使得在这个行业一加一等于二或者更多，是通过节省成本达到的。

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A study found that those snacks add up to almost one-third of all the daily calories eaten by children.

VOA: special.2010.03.17

Deficits -- at national and state levels and one resulting from the oil subsidy -- add up.

CNN: India Set to Pick Up Pace

Over a 30- or 40- year career, even paying one percent less in expenses can add up to hundreds of thousands of dollars more in savings.

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Two flexible Sample Decks can add up to eight simultaneous one-shot samples or beat-synced loops to the mix, opening up creative remixing and mash-up possibilities that go far beyond conventional DJing techniques.

ENGADGET: Traktor Kontrol S4 hardware interface set to make the scene this winter