If your car runs out of petrol, you have used a tankful.

如果你的汽车烧光了汽油，可以说你用掉了一罐。

A whole tankful of gas dropped away because of the tiny leak.

由于这个小小的漏洞，整整一油箱的汽油都漏光了。

I don't mind buying an expensive car, but I do mind standing at a filling station watching the digital read-out adding noughts to my credit-card bill for a tankful of something I can't even see.

我不介意买个贵车，但是我很介意就为加满一箱我甚至都看不见的玩意，就要看着加注站的数码表不停往我卡上添零。