您要查找的是不是：
- How long is the post tenable for? 这个职位任期多长？
- How long is the ladder? 那梯子有多长?
- How long is the warranty period? 保固期有多久呢?
- How long is the Changjiang River? 长江有多长?
- How long is the history of Hong Kong? 香港的历史有多远久?
- How long is the history of the Great Wall? 长城有多少年的历史了?
- How long is the life of a man-made satellite? 人造卫星的寿命有多长?
- How long is the way from your hometown? 从你家乡来这里的路程有多长?
- How long is the flight to Bangkok? 到曼谷需飞行多长时间?
- How long is the flight to New York? 到纽约需要飞行多长时间?
- How long is the layover in Chicago? 在芝加哥停留多久?
- How long is the ride from here then. 从这儿到那里开车要多长时间。
- How long is the ride to the city church? 到市教堂要坐多长时间?
- How long is the stopover at Airport? 机场要逗留多久?
- How long is the warranty on this machine? 这部机器的保证期有多久?
- How long is the termor a repersentative? 众议员的任期多久?
- Stephanie: How long is the warranty? 史蒂芬妮：保修期有多长？
- How long is the doorman on duty? 管理员的值班时间多长？
- How long is the journey to the coast? 到海滨去旅行的路有多远?
- How long is the flight from Seattle to New York? 从西雅图到纽约要飞多久?
