cumulus
/ˈkjuːmjələs/
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29880
Cumulus is a type of thick white cloud formed when hot air rises very quickly. 积云
noun [专属名词] 积云；堆积，堆积物
...huge cumulus clouds. ...巨大的积云。
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- Cumulonimbus, along with cumulus, are the most dramatic types of cloud. 积雨云和积云是云中最神奇的类型。
- How much does the water in a cumulus cloud weigh? 一朵积雨云所含的水有多重呢？
- Small white cumulus clouds obscure some parts of the island. 图中白色的小积云遮住了小岛的一些地方。