caltrop
'kæltrәp
基本解释
蒺藜
英文释义
n tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed
n a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits
n Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales; naturalized in America
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