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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質(zhì)云團，而且其中的恒星運轉速度低，說(shuō)明恒星不可能是在最近誕生的，也不會(huì )是從星系的其他地方飄然而入。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽團。
- A cloud is a condensation of water vapour. 云是由水蒸汽凝縮而成的。
- There are several kinds of cloud formations. 云層的構成方式有好幾種。
- The couple seemed to be on cloud nine. 那對夫婦看上去極其幸福。
- The sun disappeared behind a cloud. 太陽(yáng)消失在一片云后面。
- The wind dispersed the cloud from the sky. 風(fēng)吹散了天上的云。
- He was on cloud nine after winning the competition. 他在比賽獲勝後欣喜若狂。
- The banks of dark cloud promised rain. 天上片片烏云，就要下雨了。
- The sun disappeared from view behind a cloud. 太陽(yáng)被云遮住看不見(jiàn)了。
- Thick cloud blotted out the view. 云層把風(fēng)景遮住了。
- A cloud of locusts hit the farm. 大群蝗蟲(chóng)襲擊了那個(gè)農場(chǎng)。
- The decision will only cloud the issue. 這一決定只能使這一問(wèn)題變得復雜起來(lái)。
- A cloud of smoke was suspended in the air. 一股煙云飄懸在天空中。
- A cloud is a mass of vapour in the sky. 云是天空中的水汽團。
- Every cloud has a silver lining. 黑暗中總有一絲光明。
- The moon emerged from behind a cloud. 月亮從云層後面鉆了出來(lái)。
- A cloud of smoke or dust that chokes or smothers. 沙塵彌漫嗆人或令人窒息的煙霧或塵土
- Sometimes we can prevent a cloud from producing rain. 有時(shí)我們可以阻止云產(chǎn)生雨。
- He strained his eyes to penetrate beyond the thick cloud of dust. 他竭力想透過(guò)塵?？辞迥沁叺臇|西。
