The ancient stargazers had no knowledge of multiple star systems, but it's thought they did notice this star's brightness change.

古代的天文学家并不了解多星宿系统。但他们已经注意到这个颗星的明亮化变化。

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As relative orientations change, the brightness of reflections may also change, sometimes suddenly.

随着相对方位的变化，反射光亮度也随之变化，有时亮度的变化是突然发生的。

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This isn't a liable solution, because when the billboards turn to follow the camera, their Angle relative to the light source will change, and so will their brightness.

这不是一个主观的解决办法，因为当粒子块朝向摄像机时，他们与光源的角度会改变，他们的亮度也会随之而变。

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Users will also be able to change the settings for their phone screens, such as brightness level and the time that elapses before the display goes dark.

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That means you can tweak your images (adjust color, brightness and contrast, for example) without having to launch a separate program and reupload your files with every change.

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