单词	prefocus
释义	prefocus /priːˈfəʊkəs / adjective Relating to or denoting a light bulb which is designed so that its beam is focused automatically when it is fitted inside a lamp, especially a vehicle headlamp.
随便看	n-tuple nt. wt. n-type nu nu- nuance nuanced nub Nuba nubbed nubber nub-berrie nub-berry nubbin nubbin stretcher nubble nubbled nubbly nubby nubecula Nubia Nubian Nubian giraffe Nubian goat Nubian woodpecker

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。