将“Mileage"翻译成中文

The Mission’s replacement policy is based on age, mileage or condition.

特派团的更换政策是基于车龄、里程或车况。

Ensure that the least developed countries have significant increase in combined rail and paved road mileage and sea and air networks by 2020.

确保到2020年最不发达国家的铁路和公路总里数以及海运和空运网大幅增加。