单词乎

warning signal

warning signal是什么意思、warning signal怎么读

warning signal汉语翻译

【计】 报警信号

warning signal英语解释

名词 warning signal:

  1. an automatic signal (usually a sound) warning of danger
    同义词:alarm, alert, alarum

warning signal例句

  1. A colored flare used as a warning signal for trucks and railroad trains.
    信号火一种为卡车或火车作警告信号的有色火焰
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