Agriculture proves very difficult to quantify because of the constantly changing conditions involved.

因为所涉及的条件不断变化，所以农业很难量化。

youdao

Other species take into account the changing conditions of light by performing their visual displays only when the light is favorable.

其他物种只在光线适宜时才会展示它们的视觉形象，以此来考虑光的变化情况。

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On these and similar formations in deserts around the world, a few fierce plants have adapted to endure under ever-changing conditions.

在世界各地的沙漠中，这些和类似的岩层里，一些顽强的植物已经适应了在不断变化的条件下继续生存。

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Usually,this requires near freezing temperatures, light winds and changing conditions in Earth's atmosphere.

VOA: special.2010.01.05

If you're not updating some variable by incrementing it or decrementing it -- if you're not changing anything, presumably the conditions are never going to evaluate to false or the opposite, so you're just going to have an infinite loop, which might be your goal, but odds are it's not.

如果你不通过增加或减少它来改变一些变量,-如果你不改变什么，大概那个条件永远不会变成错误的,或相反的，所以你将得到一个无限循环，那可能是你的目标，但可能也不是。

哈佛公开课 - 计算机科学课程节选

Usually,this requires near-freezing temperatures, light winds and changing conditions in Earth's atmosphere.

VOA: special.2011.01.11

This allows producers to control the process better even during rapidly changing conditions.

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