您要查找的是不是：
- How long is a shoe, usually? 一般鞋子有多长?
- How long is a senator in office? 参议员任期多长?
- How long is a student visa valid for? 学生签证的有效期限?
- How long is a return ticket good for? 来回票可有效多久?
- How long is the post tenable for? 这个职位任期多长？
- How long is it since we visited your mother? 自从我们看望你母亲以来到现在有多长时间了？
- How long is your period usually? 通常你的月经周期多长?
- How long is the life of a man-made satellite? 人造卫星的寿命有多长?
- A: By the way, how long is my probation? 顺便问一下，我的试用期多长?
- How long is the duration of a joint venture? 那么合营期限呢?
- How long is it after having a hilt installed on? 请问这个东西装上柄后大约有多长?
- How long is the termor a repersentative? 众议员的任期多久?
- This is a shoe factory with modern equipment. 这是家制鞋厂配有现代化设备的鞋厂。
- Carrie from Sex and the City is a shoe whore. 欲望都市里面的卡莉是个“鞋狂”。
- How long is it since the electric computer came into use? 电子计算机开始应用到现在已有多久了？
- 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?
- How long is a stadium? 斯达地有多长?
- How long is the ticket available? 这些车票的有效期有多长？
- How long is this flight going to be delayed? 这班飞机还会延迟多久？
