We’ve got six litres of milk in all.

我们总共搞到六升牛奶。

Can you spare me a few litres of petrol?

你能匀给我几公升?

1 litre is roughly equal to 1 quart.

1升约等于1夸脱。

The barrel would hold 100 litres.

这桶能装一百升 。

As a rule of thumb you need a litre of paint to every 12 square metres of wall.

根据经验粗算一下，每12平方米墙需要一升涂料。

At the end of every working week I have to write in my notebook that I drove so many miles at so much per litre.

每个周末干完工作，我都要在本上记下自己跑了英里，每升跑远。