单词	pet door
释义	pet doorˈpet door noun [countable] American English a catflap
随便看	subscription subsection subsequent subsequently subservience subservient subserviently subset subside subsidence subsidiarity subsidiary subsidization subsidize subsidized subsidy subsist subsistence subsoil subsonic subspecies substance substance abuse substandard substantial

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。