单词	vio-d
释义	vio-d =vitamin D2 维生素D2,骨化醇,钙化醇
随便看	overhead crossing overhead crossings overhead current collection overhead cylinder stock overhead data overhead department overhead digestion overhead digit overhead distillate overhead distribution overhead distribution basis overhead distribution duct overhead distribution line overhead distribution power lines urderground overhead distribution sheet overhead distribution system overhead ditch overhead door overhead door holder overhead door operator overhead door track overhead double contact line system over head dribble overhead driller overhead drilling