The chemical composition of rainfall changes slightly as rain clouds move.
降雨的化学成分随着雨云的移动而发生轻微变化。
As you might have guessed, the clouds did mean rain.
你可能已经猜到了，这些云确实意味着要下雨。
As a result, the rain will be over by the time the clouds reach the place of destination.
因此，当云层到达指定位置时，降雨将可控。
There was still no sign of the sun when the rain cleared, but the sky was darkening second by second as the moon swept across its face somewhere behind the clouds.
雨停后人们仍不见太阳的踪影，但乌云背后月亮正在掠过太阳，天空也在一秒一秒变黑。
As I returned home, great black clouds came up and there was a terrific storm with torrents of rain.
回到家里，突然之间乌云密布，一场可怕的风暴挟着倾盆大雨袭来。
Viewing for many was marred by heavy clouds and rain, but the drama of the total eclipse - as darkness swept a narrow path across the continent - was unmistakable.
虽然乌云和降雨让很多地方的观看效果大打折扣，但当黑暗在亚洲略过一道长影时，没错，日全食来了。
Groundwater's contribution to sea-level rise will probably diminish, he added, because as groundwater basins are depleted, there won't be as much water left to send through rain clouds to the oceans.
他补充说，地下水对海平面上升的作用将可能减少，因为随着地下水盆地的枯竭，将不会有多少水通过雨云进入到海洋中。
Then the rain stopped as suddenly as it started, and the clouds parted, admitting into the sky a God-like light that lit up the heavens.
接着，雨停了，就像他的突如其来，云雾消散，天空出现上帝般的光，照亮天空。
It was found that three times as much rain fell to the ground from seeded single clouds as from unseeded clouds.
人们发现从播撒过的单个云中降落到地面的雨量，是从未经播撒云中降落下来的3倍。
THE rain clouds have gathered in liquid grey over the wetlands of the Sudd, the vast swamp that oozes either side of the White Nile as it curls through the heart of the new state of South Sudan.
白尼罗河蜿蜒穿过新成立的国家南苏丹，两岸广袤的苏德沼泽翻滚着泥浆。
As the frequent rain squalls and low clouds were unfavourable for air action, phillips resolved to press on.
因为频繁的暴风雨和低云层不利于空军行动，菲利普斯决定向前追赶。
Past tobacco and curl on the blue sky turn into clouds, so as to form rain, spraying tear drop of love turn into a rainbow, overflow glory.
往事如烟，袅袅上青天，化作云彩，凝聚成雨水，播洒爱的泪滴，化作一片彩虹，溢流光荣。
Storm clouds drop as little as 10 percent of their water as rain or snow, but "cloud seeding" has been used since the 1950s to coax more from them.
暴风云只降下10%水分成为雨或雪，而自1950年代起采用的“云种散播”，可催化降下更多水分。
After every shower of rain, just as the sun burst through the clouds, a beautiful rainbow would appear in the sky.
每当下完雨以后，太阳穿过云彩，一道美丽的彩虹就会出现在空中。
Viewing for many was marred by heavy clouds and rain, but the drama of the total eclipse –as darkness swept a narrow path across the continent –was unmistakable.
虽然乌云和降雨让很多地方的观看效果大打折扣，但日全食来临的这一幕是毋庸置疑的：黑暗扫过了亚洲大陆的一段狭长地带。
It draws up vapours from the sea and the land, retains them dissolved in itself, or suspended in cisterns of clouds, and drops them down again, as rain or dew, when they are required.
它能将海中和陆地上的蒸汽分解，或者将水汽藏在云层中，随后等到必要之时，再次以雨水或露珠的形式降下。
Even if the clouds cover day, rain pouring, thunder growling, as long as in school, as a shelter, is a sunny day.
即使乌云盖天，暴雨倾泻，雷电咆哮，只要在学校里，就像一个庇护所，是一个晴天。
A storm came, black clouds thick as soup and gales with rain lapping ceaselessly against the sides of the encircled machine.
一场暴风雨降临，黑压压的密云包围在小飞机旁，大风夹杂着雨水不停地敲打着机身。
When the droplets in the clouds collide, they become too big and heavy, they fall to earth again as rain.
云中的小水滴不断地相互碰撞，逐渐变、变重，最后变成雨落到地面。
From rainbow clouds there flow not Drops so bright to see As from thy presence showers a rain of melody.
什么东西最像你？从彩虹般的云朵泻出的晶莹雨滴，也比不上你的甘霖一般的旋律。
As summer clouds dissolve, unburthened of their rain;
当夏日云消雾散，大雨倾盆；
The evening approached, the clouds gathered, the rain poured down, as if all the sky was nothing but a vast flood-gate;
夜幕低垂，云层密布，下着滂沱大雨，整个天空仿佛是一座巨大的水闸似地。
The evening approached, the clouds gathered, the rain poured down, as if all the sky was nothing but a vast flood-gate;
夜幕低垂，云层密布，下着滂沱大雨，整个天空仿佛是一座巨大的水闸似地。
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