Across an endless sea of sand, under an obscured sun, is a corpse-strewn battlefield.
茫茫沙海，一望无际，乌云蔽日，尸横遍地。
Dust swept over the area again in black clouds that covered the sun.
黄沙象蔽日的乌云又一次地席卷这一地区。
The moon was covered by the dark clouds.
月亮被乌云遮蔽了。
Where army flags blotted the sun And masts of war vessels touched the clouds Snow-white skeletons lie scattered.
蔽日旌旗，连云樯艣，白骨纷如雪。
"Rain comes after sunshine, and after a dark cloud, a clear sky"
晴日之后有雨水,乌云过去见青天
On 26th February, 1896, the sky was very cloudy.
1896年2月26日，天空乌云密布。
On the seventeenth, to all appearance, the cloud passed away again.
十七日，乌云总算又吹散了。
Morning dew cannot stand being sunned; black cloud cannot shade up the sun.
朝露经不住日晒，乌云遮不住太阳。
How about cloudy, overcast days with no sun?
在没有太阳的多云或乌云密布的日子又会如何呢？
But now there is no water running in the stream. Sadness and chaos gather and cover the sky in the shape of dark clouds.
然而现在，溪流早已枯竭。蜂拥而至的悲伤和混乱化作黑云，遮天蔽日。
But before Mr. Dimmesdale had done speaking, a light gleamed far and wide over all the muffled sky.
但不等丁梅斯代尔先生把话讲完，乌云遮蔽的夜空上便远远地闪过一道宽阔的亮光。
Ignorance had been the jailkeeper. Because of ignorance, his mind had been obscured, just like the moon and stars hidden by the storm clouds.
而愚痴就是这座牢狱的狱卒，因为愚痴遮蔽了他的心，如乌云掩盖了星月。
The afternoon sky had been suddenly obliterated by enormous clouds of sand, instantly turning day into night.
下午的天空突然被浓密的乌云遮蔽得无影无踪，白天顿时变成了黑夜。
Both stars and moon were hidden by the dark bank of cloud that covered the sky, and in his gloomy garden the wind was soughing mournfully among the trees.
满天乌云遮蔽了星和月亮，吴公馆园子里阴森森地，风吹树叶，声音很凄惨。
A covering, as of mist or clouds.
覆盖遮蔽，如云、雾等
It was a cold winter day. The wind had brought dark clouds and heavy rain, so it was impossible to take a walk.
那是一个寒冷的冬日。风卷乌云，大雨倾盆，出去散步是不可能了。
After clear sky and calm weather, clouds gathered and a storm burst, and it rained with a very violent shower.
在天睛日暖之后突然乌云密集，大风狂起，暴雨倾盆。
The sun obscured by overcast, refracted from the jungle and heated the moist dark air.
云翳蔽空，日色朦胧，经丛林这么一反射，又阴又湿的空气就给烤得热烘烘的。