单词	fluor crown
释义	fluor crown noun : a crown glass that contains fluorine, that has a low refractive index, and that is used especially for optical equipment Word History Etymology fluor-
随便看	guttae guttas guttated guttatim guttation guttations gutted gutted it out gutter gutter away gutter ledge gutter out gutter press gutter stick guttered guttered out guttering guttering out gutterings gutterman guttermen gutters gutters out guttersnipe guttersnipes

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。