n.升；公升(容量单位)
=litre(英).
The bottle can hold a liter of beer. 这个瓶子可以装一升啤酒。
I was so thirsty that I drank a liter of iced tea. 我太渴了，竟然喝了一公升的冰茶。
My car does 20 kilometers to 1 liter. 我的车一公升油可以跑二十公里。
