单词	file extension
释义	file extensionˈfile exˌtension noun [countable] the letters, for example .doc, at the end of the name of a computer file that show what type of file it is
随便看	preparation preparatory preparatory school prepare prepared preparedness prepay pre-pay prepayment preponderance preponderant preponderantly preponderate preposition prepositional prepositional phrase prepossessing preposterous preposterously preposterousness preppy prep school prepubescent prequel Pre-Raphaelite

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。