英语词汇spare light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	spare light
释义	spare light 简明释义备用号灯：指车辆上备用的照明灯，用于替换主要照明灯具的功能。双语例句 1 Power companies always keep spare capacity and will keep their turbines spinning through this unpredictable fall in demand in preparation for when people turn their lights back on again. 电力公司总是保留一些备用发电能力，而在这用电需求突然下降的一个小时中，供电公司的涡轮发电机会继续工作，为一小时后的用电新高峰做准备。
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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。