n.水壺；坑穴
The kettle is boiling. 壺里的水開(kāi)了。
The switch on the kettle won't stay down. 這個(gè)水壺上的開(kāi)關(guān)按下時(shí)卡不住了。
This kettle whistles when it boils. 這水壺在水開(kāi)時(shí)會(huì)嗶嗶作響。
n.茶壺；燒水壺
n.半球形銅鼓；定音鼓
