现在你已经了解了这两个参数——快门速度和光圈大小，他们从本质上来说有同一个功能：控制进入相机的光线总量。

So you have these two parameters, shutter speed and aperture size, both of which do essentially the same thing: control how much light gets in.

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从本质上说，它是意识的一种在你的梦里状态。

In essence, it is a state of consciousness in your dreams.

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从本质上说，它是意识的一种在你的梦里状态。

In essence, it is a state of consciousness in your dreams.

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