Forecasting floods is not an exact science.
预测洪水不是一门精密科学。
History is not an exact science.
历史学不是一门精确科学。
History is not an exact science.
历史不是一门精密的科学。
这并不是非常确切的。
But it's not an exact science. It's a feeling.
这不是精确科学，这只是一种感觉。
This is not an exact science, and I am not advocating drastic change.
这不是一种精确的科学，我也不是在提倡剧烈的变化。
But it's not an exact science. It's a feeling. - Well, what if you're wrong?
这不是精确科学，这只是一种感觉。-错了怎么样？
Thread programming is not always an exact science: always program defensively.
线程编程不一定总是精确的科学，所以在编程时要始终注意这一点。
Static analysis is difficult, and it's probably not even an exact science.
静态分析很困难，而且也可能不是精确的数字。
Static analysis is difficult, and it's probably not even an exact science.
静态分析很困难，而且也可能不是精确的数字。
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