英语词汇light-pen怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	light-pen
释义	light-penn. (also 亦作 light-gun) 1 a penlike or gunlike photosensitive device held to the screen of a computer terminal for passing information on to it 光笔 2 a light-emitting device used for reading bar codes 读码器
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英汉双解词典包含94788条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。