Rain comes from clouds. There are many kinds of clouds.

雨来自于云，云的种类有很多。

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Really? So rain comes from clouds!

真的？因此雨来自云！

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The strongest return signal came from clouds.

最强的返回信号来自云层。

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The shapes look like clouds. Listen now to sounds from a clouded leopard.

VOA: special.2010.06.22

like we're going to get really wet from the clouds and I will need my umbrella.

就好像云里会渗出雨水一样。我得带上我的伞。

I wonder if 实战 - SpeakingMax英语口语达人

These crystals grow from water particles in cold clouds.

VOA: special.2010.01.05

Many species of bacteria have been collected from clouds, along with the spores of a variety of fungi.

ECONOMIST: Aerobiology

Climate models have lots of parameters that are represented by numbers for example, how quickly snow crystals fall from clouds, or for how long they reside within those clouds.

ECONOMIST: Statistics and climatology

"Rogue waves", which had moved so quickly they could not be distinguished from clouds, had crashed across the vessel, finally damaging the accommodation pod and endangering the lives of those on board.

BBC: Revolutionary catamaran 'saved our lives'