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- There's a huge, gunky brown cloud that lingers over south Asia and the Indian Ocean each winter. 每年冬天有一个巨大乌黑的云团持续徘徊在南亚和印度洋。
- The “Asian brown cloud” is a toxic mix of ash, acids and airborne particles from car and factory emissions, as well as low-tech polluters like wood-burning stoves. “亚洲褐云”是一种有毒的混合灰分，从汽车和工厂排放工业酸和腾空颗粒，以及低技术污染者像燃烧木材的炉灶。
- When the wind reached the mountain-top he could see something happen, a flicker of blue stuff against brown clouds. 风吹到山顶时他看到了什么东西在动弹，背衬着乌云有一样蓝色的东西在摇曳。
- Health problems associated with the brown clouds include cardiovascular and respiratory diseases. 与棕色烟云有关的健康问题包括心血管和呼吸疾病。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- But brown clouds, whose environmental and economic impacts are beginning to be unraveled by scientists, are complicating and in some cases aggravating their effects. 不过在众多科学家陆续阐明褐云所带来的环璄与经济冲击之际，彰显出人类对其严重的冲击效应还有很大的检讨和防治空间。
- The scientists said the brown clouds are having a negative impact on air quality and agricultural production in Asia with risks to human health increasing. 科学家说在亚洲棕色烟云对空气质量和农业生产具有负面影响，带来人类健康风险增长。
- A cloud is a condensation of water vapour. 云是由水蒸汽凝缩而成的。
- The brown clouds have darkened 13 cities in Asia, including Beijing, Shanghai, Bangkok, Cairo, Mumbai, New Delhi and Tehran, "dimming" sunlight in some places by as much as 25 per cent. 棕色云罩已经笼罩了亚洲13个城市，包括北京、上海、曼谷、开罗、孟买、新德里和德黑兰，一些地方阳光“变暗”了差不多25%25。
- There are several kinds of cloud formations. 云层的构成方式有好几种。
- Brown clouds of pollution over South Asia have multiplied solar heating of the lower atmosphere by 50 percent, finds new research by scientists at Scripps Institution of Oceanography. 美国斯克雷普斯海洋研究所最新发现，南亚上空积聚的褐云已招致大气下层的太阳热能提高50%25。
- The couple seemed to be on cloud nine. 那对夫妇看上去极其幸福。
- The sun disappeared behind a cloud. 太阳消失在一片云后面。
- Mr. Robert Brown was announced as the sponsor. 罗勃特·布朗先生被宣布为赞助人。
- The wind dispersed the cloud from the sky. 风吹散了天上的云。
- He was on cloud nine after winning the competition. 他在比赛获胜後欣喜若狂。
- Do you know why Mr Brown has a heavy heart? 你知道为什么布朗先生心情不愉快吗？
- The banks of dark cloud promised rain. 天上片片乌云，就要下雨了。
- The girl was dressed in brown from top to toe. 那女孩从头到脚穿着一身棕色的衣服。
- Mrs Brown is known as a social climber. 布朗太太是有名的趋炎附势的人。
