您要查找的是不是：
- How long does it last on its batteries? 它的电池可以维持多久?
- How long does it last before the tumours regresses? 多久前的肿瘤去年倒退？
- Do you specify the duration of the term of consignment? When does it begin, how long does it last? 代销期是多久?何时开始,有效期是多久?
- What were the characteristics of the time? How long did it last? 在时间上有何特点?延续了多长时间?
- How long did it last? 持续了多久？
- How long does it take him to drive to work? 他开车去上班要用多长时间？
- How long does it take to go there by bike? 骑自行车去那里要多长时间？
- How long does it take to go to the airport by taxi? 坐出租汽车去飞机场要多长时间？
- How long does it last ? 持续多久?
- How long does it last? 有多长时间了?
- How long does it take to fly from here to Japan? 从这里飞到日本要多久？
- How long does it take to get to new orleans? 到新奥尔良需要多少时间？
- How long does it take to get through customs? 海关检查要用多少时间?
- How long does it take from here to tokyo station by car? 坐汽车从这里到东京要花多长时间？
- How long does it take to go to the hospital by car? 坐小轿车去医院要多长时间？
- How long does it take to go to the station by car? 坐小轿车去车站要多长时间？
- How long does it take to fly from London to Paris? 从伦敦飞往巴黎需要多久?
- 'How long did it last?' 'Oh,hours and hours.' “持续了多久?”“噢，很久很久。”
- How long does it take by regular mail? 普通邮件要多少时间？
- How long does it take to fly to ShangHai? 乘飞机到上海需要多长时间?
