单词	pyrrolidone
释义	pyrrolidone /pɪˈrɒlɪdəʊn / noun [mass noun] Chemistry A colourless weakly basic solid which is a keto derivative of pyrrolidine. Chemical formula: C4H7NO. The water-soluble macromolecular compound preferably includes a copolymer of N-vinyl - 2 - pyrrolidone and vinyl acetate.
随便看	lingcod linger lingerer lingerie lingering lingeringly call boy call centre call changes call collect call diversion called-for caller caller display caller ID caller identification call for call forwarding call girl Callicrates calligram calligraph calligrapher calligraphic calligraphist

英语词典包含243303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。