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。
- 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。
- There are some electrical apparatus in the room. 房间里有些电器。
- 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。
- They have installed wireless apparatus on board. 他们已在船上安装了无线电设备。
- The wind dispersed the cloud from the sky. 风吹散了天上的云。
- The astronauts have special breathing apparatus. 宇航员有特殊的呼吸装置。
- He was on cloud nine after winning the competition. 他在比赛获胜後欣喜若狂。
- The banks of dark cloud promised rain. 天上片片乌云，就要下雨了。
- The television men have set up their apparatus. 电视工作人员已经安装好了他们的器材。
- The sun disappeared from view behind a cloud. 太阳被云遮住看不见了。
- An apparatus for measuring gases. 气体贮存计量器用来测量气体的一种工具
- 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 vaulting horse is a difficult piece of apparatus to master. 鞍马是很难掌握的器械。
- The decision will only cloud the issue. 这一决定只能使这一问题变得复杂起来。
- 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。
