单词 duale 释义 ▪ I. dual, a. (n.)|djul|Also 6 douale, 7 duall.[ad. L. dul-is containing two, f. du-o two: cf. F. duel, and see -al1.]A. adj.1. Of or pertaining to two. dual number (Gram.), the inflected form expressing two or a pair.1607Bp. Andrewes Se...