keg是什麽意思
n.（容量為5-10加侖的）小桶；啤酒桶；桶裝啤酒；
例句：
The bar tender tapped a new keg of beer.
We're sitting on a powder keg of racial tension in the city.
The new tax is a political powder keg which could result in widespread violence.
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Not all keg beers are pasteurised.
The keg found tied to your father.
The knife glinted and the keg fell away cleanly.