N-COUNT [num NOUN]升（米制容量单位，等于1.76英国品脱或2.11美国品脱） A litre is a metric unit of volume that is a thousand cubic centimetres. It is equal to 1.76 British pints or 2.11 American pints. 升（米制容量单位，等于1.76英国品脱或2.11美国品脱）
...15 litres of water. [+ of]
15升水
This tax would raise petrol prices by about 3.5p per litre.