scud
verb [intransitive] (literary)- + adv./prep.
(of clouds 云 to move quickly across the sky 飞掠；疾飞 Puffy white clouds were scudding past. 蓬松的白云飞驰而过。
Oxford Collocations DictionaryScud is used with these nouns as the subject:- cloud
Word Originmid 16th cent. (as a verb): perhaps an alteration of the noun scut ‘short tale of a hare’, thus reflecting the sense ‘race like a hare’.