[countable] a large container for holding liquid or gas（盛液体或气体的）大容器，桶，罐，槽the contents of a tank or the amount it will hold箱（或桶等）所装之物；一箱（或一桶等）的量 ●in the ˈtank (NAmE)
(Finance 金融) (informal) (about the price of shares, bonds, etc.) falling quickly（股票、债券等的价格）跳水，暴跌◆Technology stocks are doing well, but everything else is in the tank.科技股表现良好，但是其他股票都出现了暴跌。 think tank