英语词汇“lifebuoy self-activating smoke signal”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	lifebuoy self-activating smoke signal
释义	lifebuoy self-activating smoke signal [网络] 救生圈自发烟雾信号；救生园自发烟雾信号
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