[] a large, round container, usually made of wood or metal, with flat ends and, usually, curved sides; the amount that such a container holds桶；一桶的量➡ picture at transport a unit of measurement in the oil industry equal to between 120 and 159 litres桶（石油业的计量单位，每桶相当于 120 升到 159 升）◆Oil prices rose to $60 a barrel.石油价格上升到每桶 60 美元。◆The forecast for global oil demand is 76 m barrels a day.预测全球石油需求量为每日 7600 万桶。a unit of measurement used in the beer-making (brewing) industry equal to about 164 litres桶（啤酒制造业的计量单位，每桶相当于 164 升）