在这个变化过程中，动物继续选择祖先使用开关排列和调控器，但是他们加入了一个非常好的创意。

In making this transition, animals hung on to the same switch arrangement and the same sets of regulators used by the ancestors, but they added a splendid additional idea.

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在这个传递和反射的过程中，声音发生了变化，回声的变化使蝙蝠能够感知到目标的特征。

In this process of transmission and reflection, the sounds are changed, and the changes in the echoes enable the bat to perceive features of the target.

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在这个过程中，信息发生了变化。

Somewhere along the way, the message changed.

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This is a point that is often confusing, because you can think, well maybe I could calculate what the internal pressure is even for this very rapid process.

这一点可能让你们很困惑，因为你们可以想象这个过程，我也可以计算在这快速的变化中,内部压强是多大。

麻省理工公开课 - 热力学与动力学课程节选

So if we have a negative change in energy for any reaction as it's written, what that actually means is we're giving off energy as the reaction proceeds.

如果我们像这里写的这样,在任何一个反应过后，得，到的能量变化为负值,这就意味着我们在这个过程中放出了能量。

麻省理工公开课 - 化学原理课程节选