It is simple pleasures, such as a walk on a sunny day, which have a cumulative effect on our mood.

诸如在晴朗的日子散步这样简朴的乐趣对我们的情绪有累积性益处。

《柯林斯英汉双解大词典》

This drug has a cumulative effect.

这种药有渐增的效力。

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In fact, these genes seem to have a cumulative effect.

事实上，这些基因似乎具有累积效应。

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The paintings, drawings, prints, pastels, and bronze sculptures have a cumulative effect both steamy and cold.

NEWYORKER: Bare Naked Ladies

That policy baldly contradicted the electronic interference theory, except insofar as 500 passenger devices might have a cumulative effect.

ENGADGET: Editorial: Devices on planes -- either enforce the rules or change them

The researchers pointed out the findings were consistent with, and of a similar magnitude to, those found for breast cancer although they did not see a cumulative effect.

BBC: 'Night shift link' to ovarian cancer