Times change and conditions change.

时代在改变，情况在改变。

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Be prepared to redefine this factor as conditions change.

随着情况的变化，随时准备重新判定着一因素。

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it's hard to measure smoke dynamics outdoors because conditions change rapidly;

因为环境变化很快所以在动态的户外环境中测量二手烟是困难的。

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They say this can provide important information about how ocean conditions change over time and how corals react to climate change.

VOA: special.2010.08.10

This normal weight animal like this has its whole equilibrium thrown off, its homeostasis thrown off when its dietary conditions change.

在饮食条件发生变化时,这些正常体重动物的生理平衡被打破,于是摈弃了原来的平衡饮食

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Whereas under these conditions, these quantities, if you look at free energy change, for example at constant temperature and pressure, H you can still calculate H.

但是，在这些条件下，这些物理量，如果我们考察自由能的变化,例如在恒定的温度和压强下，我们仍然可以计算。

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How current varieties respond and what alternatives farmers have in what to grow if conditions change?

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"We are looking to determine whether these options remain valid as conditions change, " he said.

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If conditions change, they can always put more of that money back into bonds.

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