cumulus

/ˈkjuːmjələs/ 37
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。

单词造句:
网友用“Cumulus”造句精选
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。
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。