单词 doob 释义 ‖ doob|dub|Also doub, erron. dhoop.[Hind db, = Skr. drv.]Native name for the dog's-tooth grass (Cynodon Dactylon), used as a fodder-grass in India.1810T. Williamson E. India Vade M. I. 259 (Y.) The doob..in the low countries about Dacca.....