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。
- 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。
- The article is a savage attack on her past action. 那篇文章对她过去的行为进行了恶毒的攻击。
- One squadron peeled off to attack enemy bombers. 一中队战机脱离编队攻击敌轰炸机群。
- 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。
- The banks of dark cloud promised rain. 天上片片乌云，就要下雨了。
- She had an attack of indigestion yesterday. 她昨天消化不良。
- The commander chalked out his plan of attack. 司令官对进攻计划作了粗略的介绍。
- The sun disappeared from view behind a cloud. 太阳被云遮住看不见了。
- The attack on Pearl Harbor was a crushing calamity. 偷袭珍珠港(对美军来说)是一场毁灭性的灾难。
- The attack would bog down sooner or later. 进攻迟早会陷入停滞状态。
- Thick cloud blotted out the view. 云层把风景遮住了。
- An attack of fever carried Gary off. 加里突然患了一种热病，不幸死亡。
- A cloud of locusts hit the farm. 大群蝗虫袭击了那个农场。
- The bacillus can attack us from many ways. 细菌能从许多途径侵入我们。
- The decision will only cloud the issue. 这一决定只能使这一问题变得复杂起来。
