Yet there is a dark side to this picture: despite our progress, half of the world's population still suffers, with water services inferior to those available to the ancient Greeks and Romans.

然而，这种情况也有其黑暗的一面：尽管我们取得了进步，世界上仍有一半的人口在受苦，供水服务还不如古希腊和古罗马人。

youdao

When the candle was only half an inch high it flickered out and the room became dark.

蜡烛只有半英寸长时，烛光忽闪忽闪地熄灭了，于是房间一片漆黑。

youdao

So the dark half of the rings is 60 timesbrighter, and the bright half 20 times brighter, than they would haveappeared if the entire system, planet included, could have beencaptured in a single image.

所以要在这一幅包括行星在内的整个系统的图像中使土星环显现出来，土星环黑暗的一半被增亮了60倍，而明亮的一半被增亮了20倍。

youdao

See the merry limbs in hot Highland fling Because some wizard vermin Charmed from the quiet this revel When our ears were half lulled By the dark music Blown from Sleep's trumpet.

看那在苏格兰高地舞欢快的四肢,因为一些男巫,神往陶醉于这狂欢中,当我们的耳朵半听着,在黑暗音乐边的是小号的声音。

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"In countries where it's dark half the year, you do tend to have a great tradition of storytelling, " he says.

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