mileage
noun [ U ] uk/ˈmaɪ.lɪdʒ/ us/ˈmaɪ.lɪdʒ/
(DISTANCE TRAVELLED)
英里数；英里里程；给定油量的行车里程
the distance that a vehicle has travelled or the distance that it can travel using a particular amount of fuel
"What's the mileage on your car?" "Oh, about 40,000." “你的车跑了多少英里了？”“哦，大约4万了。”
Smaller cars have better mileage and so cost less to run. 汽车越小，同等油耗跑的里程越远，因此使用成本越低。
(MONEY FOR TRAVEL)
(also mileage allowance)按英里计算的交通补贴；按英里计算的收费
the amount of money that you are paid or that you must pay for each mile you travel
The car costs £70 a day to rent, but you get unlimited mileage (= no charge for the miles travelled). 租一辆汽车每天的费用是70英镑，但不限里程数。
(ADVANTAGE)
informal利益；好处
the advantage that you can get from a situation
There's no mileage in complaining to the director - she'll just ignore you. 向主任抱怨没有用——她根本不会理你。
political mileage 政治利益