When the wind draws ice-crystal clouds into long, fine filaments, they are called fibratus.

当风将含有冰晶的云朵吹成长长的细丝状时，毛状云便形成了。

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When the wind draws ice-crystal clouds into long, fine filaments, they are called fibratus.

当风将含有冰晶的云朵吹成长长的细丝状时，毛状云便形成了。

youdao