单词 knotweed 释义 knotweed|ntwid|[f. knot n.1 + weed n.]†a. Lyte's name for Knawel (Scleranthus annuus). Obs. b. Name for various species of Centaurea (Knapweed, etc.), from the knobby ‘heads’. c. Name for various species of Polygonum.1578Lyte Dodoen...