英语词汇“canary in the (or a) coal mine”的意思、释义、用法解释及翻译-春雷网

词汇	canary in the (or a) coal mine
释义	请查阅词条：canary
随便看	duffing duffing-up duffle duffles duffs duff sb up duff somebody up duff someone up duff someone up duff up Duffy, Carol Ann dufrenite dufrenoysite duftar dufter duftur Du Fu du fu dufus Dufy, Raoul dug dug dugite dugong dugongs

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