单词 roosa 释义 roosa, rusa|rus|Also roussa, rusha.[Hind rús.]roosa grass, an Indian grass (Andropogon Schnanthus or Cymbopogon Martini), from which roosa oil is distilled.1853T. C. Archer Pop. Econ. Bot. 279 Oil of Indian Grass, Roosa Oil, or Roosa...