a large, round container with a flat base and an open top

Outside was a stone patio with tubs of flowering plants. 外面是一个石砌的露台，上面摆着一盆盆开着花的植物。

The first part of the wine-making process is to crush the grapes in large tubs. 酿制葡萄酒的第一步是在大缸里压碎葡萄。

a small plastic container with a lid, used for storing food

a tub of ice cream/margarine 一杯冰激凌／一小桶人造黄油

a long plastic, metal, or ceramic container that is filled with water so that you can sit or lie in it to wash your whole body

It's good to sink into a nice, hot tub at the end of a hard day's work. 一天劳累之后，泡在盛满热水的浴缸里真舒服。

to fill a bath with water for washing

I'll fill the tub for you while you take off those wet clothes. 你把湿衣服脱了，我帮你给浴缸放水。