单词	black swan
释义	black swanˌblack ˈswan (also ˌblack ˈswan eˌvent) noun [countable] an event that no one expects and that has a very great effect
随便看	Duchess of Windsor Duchess of York duchy duck duckbilled platypus duckboards ducking stool duckling ducks and drakes duckweed ducky duct ductile ductility ducting dud dude dude ranch dudgeon due due date duel due process duet due to

英语词典包含52748条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。