cloud
云 阴云 云状物 一大群 黑斑英释
Fears of renewed terrorist attacks cast a cloud over the event (= spoilt the happy situation ) ..对恐怖分子再次发动袭击的担心给这次活动蒙上了一层阴影。
in the clouds,心不在焉;在云层中
cloud computing,云计算
under a cloud,失宠;不高兴;受嫌疑
dark cloud,乌云;黑云;暗云
cloud point,[化]浊点
cloud cover,云量
on a cloud,[美国俚语]忘乎所以;高兴得不得了;恍惚
cloud nine,n. [俚]九重天(想象中的天堂);[俚]极乐心境;[俚]狂喜状态
molecular cloud,分子云
gas cloud,气体云;空气层;烟气层;毒云
a cloud of dust,一阵尘土
mushroom cloud,蘑菇云(热核爆炸后升起的)
cloud formation,云之形成
dust cloud,[天文]尘埃云;尘云;尘雾
magellanic cloud,麦哲伦星云
cloud layer,云层
convective cloud,对流云;对疗
electron cloud,电子云
rain cloud,n. 雨云
storm cloud,暴风云;动乱的征兆