剑桥词典a situation or a place that could easily become extremely dangerous 火药桶；一触即发的局势；危险的地方 The build-up of forces in the region is creating a powder keg . 在该地区加强军备是在制造紧张局势。 The new tax is a political powder keg which could result in widespread violence . 新的税收政策是个政治火药桶，会引起大范围的激烈反应。 返回 powder keg