单词	caprolactam
释义	caprolactam noun cap·​ro·​lac·​tam ˌka-prō-ˈlak-ˌtam  : a white crystalline cyclic amide C6H11NO used especially in making one type of nylon Word History Etymology caproic acid + lactone + amide First Known Use 1944, in the meaning defined above
随便看	frappest frapping frappé fraps fras Frascati frascatis frasch method Frasch process frase Fraser Fraser fir fraserae fraseras Frasnian frass frasses frat frat boy frat party fratch fratched fratches fratchier fratchiest

英语词典包含469781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。