这包括使用硫或硫化氢气溶胶，使二氧化硫形成云层，进而导致全球变暗。

This would involve using sulphur or hydrogen sulphide aerosols so that sulphur dioxide would form clouds, which would, in turn, lead to global dimming.

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我们关上百叶窗，使房间变暗了。

We darkened the room by closing the shutters.

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最好的捷径是寻找宇宙中一天体运行到另一天体与观察者之间，使前者如同经过后者的表面，使我们从地球上观察到的光线变暗。

The best approach is to look for transits, in which an orbiting planet passes in front of its star, dimming the amount of light we detect on Earth.

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