单词	photoptometer
释义	photoptometer noun phot·​optometer ¦fōt+ : an instrument for studying visual impressions Word History Etymology phot- + optometer
随便看	ocreae ocreate OCS Oct oct- octa octa- octaacetate octachord octachords Octacnemus octacosane octad octadecane octadecanol octadecyl octadrachm octads octagon octagonal octagonally octagons octahedra octahedral octahedral cleavage

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。