您要查找的是不是：
- How long do elephants live? 象能活多久?
- How long do you intend to stop with the firm? 你打算还为公司工作多久？
- How long do you think this fine weather will last? 你看这样的好天气能持续多久?
- How long do you expect to be stay in China? 您将在中国停留多长时间？
- 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 do you think they can hold their breath? 你认为他们憋气能憋多久?
- How long did Zhu Xi live at Wuyi Mountain? 那朱熹在武夷山到底生活了多久呢?
- How long do you generally keep your offer open? 你方报盘一般保持几日有效？
- MOTT: How long did you live there? 莫特：你们在那里住多久了?
- How long do you wash the head once? 你多长时间洗一次头？
- How long does it take to fly from here to Japan? 从这里飞到日本要多久？
- How long does this train stop at Zhengzhou? 这列火车在郑州要停多久？
- How long do you watch TV every day? 你每天看多长时间电视？
- How long does it take to get to new orleans? 到新奥尔良需要多少时间？
- MOTT：How long did you live there? 莫特：你们在那里住多久了?
- All right. How long do you plan to stay here? 好的，您计划在这儿住多久?
- How long do I have to wait for the next bus ? 下一趟车要等多久才来?
- How long do it take to fly from hefei to beijing? 从合肥乘飞机去北京要多长时间?
