《knapweed》怎以读
英 ['næpwi:d]
美 ['næpˌwid]
《knapweed》是什么意思
黑矢车菊，矢车菊；
英英释义
knapweed[ 'næpwi:d ]
- n.any of various plants of the genus Centaurea having purple thistlelike flowers
学习《knapweed》怎么用
权威例句
The impact of knapweed on Montana's economyEffects of Sheep Grazing on a Spotted Knapweed-Infested Idaho Fescue CommunityIntroductory notes on squarrose knapweed (Centaurea virgata Lam. ssp. squarrosa Gugl.)A Systems Approach for the Management of Russian Knapweed (Centaurea repens)Effect of biocontrol insects on diffuse knapweed (Centaurea diffusa) in a Colorado grasslandDistribution, biology, and management of diffuse knapweed () and spotted knapweed ().Revegetating Russian Knapweed ( Acroptilon Repens) Infestations Using Morphologically Diverse Species and Seedbed PreparationHerbicide Effects on Density and Biomass of Russian Knapweed (Acroptilon repens) and Associated Plant SpeciesDistribution, biology, and management of diffuse knapweed (Centaurea diffusa) and spotted knapweed (Centaurea maculosa).Distribution of yellow starthistle (Centaurea solstitialis) and Russian knapweed (Centaurea repens).