This text illuminates the philosopher's early thinking.

这篇课文解释了这位哲学家的早期思想。

If a light illuminates a certain space, its intensity at twice the distance is not twice as feeble, but two times two, equal four times, as feeble.

如果一个光源照亮某一个地方，这个地方距离光源越远，光照强度会越弱，但是光照强度并不是与光源距离等比例地减弱，就是说，距离延长两倍，光照强度并不是减弱两倍，而是减弱两倍的两倍，等于减弱四倍；

Neither is essential to the plot, and yet each of these pieces of writing, the first no more than a page long, illuminates Ms Messud's particular gifts.

这两件事都不是小说情节所必须的，也不是段落中不可或缺的，前一个故事还没有一页长，这显示出了梅苏德女士特殊的才华。

Daniel's friends continue to visit us. It is a pilgrimage of sorts. My heart tightens when I see them. Their presence illuminates our immeasurable loss.

丹尼尔的朋友们仍然会来看望我。带着点儿朝觐的意味。每当看到他们，我的心都会猛地收紧。他们的存在时刻提醒着我们，我们的损失是多么无可估量。

A bolt of lightning illuminates the sky around the 2,500-year-old Parthenon temple, high on the Acropolis during a heavy rainfall in Athens early this morning.

今天凌晨，雅典的一场暴雨中，雅典卫城山上一道闪电照亮了有2500年历史的古老帕台农神庙的天空。