英语词汇light and sound signal certificate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 and sound signal certificate
释义	light and sound signal certificate 简明释义声光信号设备证书网络释义 1 ?声光信号设备证书 ... ground traffic signal light 机场地面交通指挥灯 light and sound signal certificate 声光信号设备证书 light off signal 灭光信号 ...
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英汉双解词典包含3185865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。