单词	metamaterial
释义	metamaterialmet·a·ma·te·ri·al /ˈmetəməˌtɪəriəl $ -ˌtɪr-/ noun [countable] technical an artificial material that has qualities that natural materials do not have
随便看	back catalogue backchat backcloth backcomb back country backdate backdoor back door backdrop back-end backer backfire back formation backgammon background backhand backhanded backhander backhoe backing backlash backless backlink backlog back-office

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。