| 释义 |
bird grass in American Englishbird grass in American Englishnoun1. a grass, Poa trivialis, grown in temperate regions of North America largely for lawns and turf 2. the knotgrass Polygonum aviculare Word origin [1775–85, Amer.]This word is first recorded in the period 1775–85. Other words that entered Englishat around the same time include: Americanism, alto, backfire, guideline, waltz |