英语词汇“russian knapweed”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	russian knapweed
释义	russian knapweed noun Usage: usually capitalized R : a Eurasian herb (Centaurea picris) introduced into the central United States where it has become a troublesome weed
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