dulcification n.使愉快；甜美化dulciana dulcetly adj.優(yōu)美的；美妙的；美味的dulcet (adj.) dulcet adj.優(yōu)美的；美妙的；美味的dula 杜拉duking n.公爵dukey 提升平車dukeway 豎井斜井聯(lián)合提升法dukeship 公爵的尊嚴(yán)和身分dukes-up adj.擺出打架架勢的；準(zhǔn)備打架的dukes (n.) dukes 杜克斯鎢鋼dukeling 小公爵dukedom (n.) dukedom n.公國；公爵的地位；公國領(lǐng)土duked n.公爵duke-out n.拳斗duke university duke red