She handles this difficult subject with a light touch.

她处理起这种难题来方法很巧妙。

《牛津词典》

That sounds complicated, but isn't really. If you move a light twice as far from your subject, you end up with only one-quarter of the light on the subject.

这听起来有些复杂，其实很简单，举例说明：如果你将光源至被摄主体的距离增加1倍，那么落在主体上的光线只有距离增加前的四分之一。

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It seems that light energy will be an important subject of scientific research in the future.

看来，在未来的年代里，光能是科学研究的重要课题。

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It ought to mean "to go forward" with everything behind it, but needless to say her thoughts on the subject were never implemented because if one day red light means "stop" and the next day red light means "go," there might be a few problems.

它因该表示勇往直前，当然她的想法没有实现,因为如果红灯今天表示停,明天表示走，会天下大乱的。

耶鲁公开课 - 文学理论导论课程节选

Borrowing the same principles as the Lightscoop, you direct the light away from the subject, in this case reflecting it with the bounce card so a softer, diffused light illuminates the subject and background.

FORBES: Going Rogue: Adding Flair to Photography with Lighting Tools

Perhaps we'll just wait for TiVo to shed some light on the subject.

ENGADGET: DVR use does/doesn't boost viewing hours

It's appropriate that, in light of the subject matter, Lewis sounds liberated in every sense of the word.

NPR: Rilo Kiley and the Joy of Liberation