您要查找的是不是：
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- The temperature of volcanic gases is very high. 火山气体的温度很高。
- A cloud is a condensation of water vapour. 云是由水蒸汽凝缩而成的。
- There are several kinds of cloud formations. 云层的构成方式有好几种。
- 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。
- An agglomerate is a volcanic breccia. 集块岩是一种火山性角砾石。
- The wind dispersed the cloud from the sky. 风吹散了天上的云。
- The place was recently visited by a serious volcanic eruption. 这地方最近发生了一次严重的火山爆发。
- He was on cloud nine after winning the competition. 他在比赛获胜後欣喜若狂。
- The phenomena associated with volcanic activity. 火山现象与火山活动有关的现象
- The banks of dark cloud promised rain. 天上片片乌云，就要下雨了。
- The sun disappeared from view behind a cloud. 太阳被云遮住看不见了。
- Thick cloud blotted out the view. 云层把风景遮住了。
- A cloud of locusts hit the farm. 大群蝗虫袭击了那个农场。
- The decision will only cloud the issue. 这一决定只能使这一问题变得复杂起来。
- The waves beveled a volcanic island. 波涛径直从一个火山岛上翻腾过去。
- A cloud of smoke was suspended in the air. 一股烟云飘悬在天空中。
- A cloud is a mass of vapour in the sky. 云是天空中的水汽团。
- The French Revolution was a volcanic upheaval in European history. 法国大革命是欧洲历史上的一次剧变。
