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- The absence of protostellar cloud material and the low velocity of the stars shows they could not have been born relatively recently or sailed in from elsewhere in the galaxy. 星系中缺少原恒星物质云团，而且其中的恒星运转速度低，说明恒星不可能是在最近诞生的，也不会是从星系的其他地方飘然而入。
- 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 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。
- 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。
- 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。
- Every cloud has a silver lining. 黑暗中总有一丝光明。
- The moon emerged from behind a cloud. 月亮从云层後面钻了出来。
- A cloud of smoke or dust that chokes or smothers. 沙尘弥漫呛人或令人窒息的烟雾或尘土
- Sometimes we can prevent a cloud from producing rain. 有时我们可以阻止云产生雨。
- He strained his eyes to penetrate beyond the thick cloud of dust. 他竭力想透过尘埃看清那边的东西。
