powder keg

noun
🔊/ˈpaʊdə keɡ/
🔊/ˈpaʊdər keɡ/
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  1. a dangerous situation that may suddenly become very violent危险的局面;一触即发的情势;火药桶
    • We’re sitting on a powder keg of racial tension in the city.我们坐在城市中种族紧张局势的火药桶上。
    Topics Dangerc2