昨晚屏幕变黑了。
屏幕变黑了；他通过加上褐色使颜色变暗了。
The screen darkened; he darkened the colors by adding brown.
希望你的屏幕能变黑，然后过一会儿（可能是10秒到1分钟之间，取决于你的计算机速度）。
Hit Start. Hopefully the screen will go black, but only for a little while (this could be anywhere from 10 seconds to a minute or so, depending on how fast your computer is).
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