| 单词 | knapweed |
| 释义 | Word Frequency knapweed(ˈnæpˌwiːd) noun any of several plants of the genus Centaurea, having purplish thistle-like flowers: family Asteraceae (composites) See also centaury (sense 2), hardheads Word origin C15 knopwed; see knop, weed1 |
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