Forecasting floods is not an exact science.

预测洪水不是一门精密科学。

《柯林斯英汉双解大词典》

Assessing insurance risk can never be an exact science.

估定承保的风险永远不会成为一门精确的科学。

《牛津词典》

It's not an exact science.

这并不是非常确切的。

youdao

Marketing, as much as we want it to be, is not an exact science.

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It is not an exact science and depends on what you want to measure.

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Economics is not such an exact science that a variety of opinions is unimportant.

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