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。

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Let's start with a very simple white puffy cloud - a cumulus cloud.

让我们先从一团很普通的蓬松的白色积雨云算起。

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Let's start with a very simple white puffy cloud - a cumulus cloud.

让我们先从一团很普通的蓬松的白色积雨云算起。

youdao