他们相信他们仍面临很多挑战，而且未来情况发生逆转的可能性依然存在。

And they believe that there are still many challenges and the potential for reversals in the future.

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当这种情况发生时，我们应该会看到这些事件对价格的影响开始逆转。

As this occurs, we should see the impact of these events on prices start to reverse.

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现在情况发生了逆转。

Now, the reverse is happening.

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但是，该机构提醒到，如果不采取措施逆转年轻人中不断增加的肥胖情况，这种进展可能会发生倒退。

But, it warns this progress could be set back if measures are not taken to reverse the rise in obesity among young people.

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但是他认为只有在新特征的进化是非常简单的情况下才可以逆转，例如只有一个位点发生突变。

But he thinks it can only go backward when the evolution of the trait is simple, like when a single mutation is involved.

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但是他认为只有在新特征的进化是非常简单的情况下才可以逆转，例如只有一个位点发生突变。

But he thinks it can only go backward when the evolution of the trait is simple, like when a single mutation is involved.

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