1. After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour.
    比赛结束后，坎贝尔非常失望地得知他的平均时速是299英里。

2. A school day at Mrs. Cox´s high school is divided into six periods of one hour each.
    科克斯夫人所在的学校，一天六节课，

3. At sevenpence an hour that came to one pound four and ninepence halfpenny.
    按每小时七便士算，一共是一镑四先令九个半便士。

4. After a one-hour flight the next morning, we spent the day visiting attractions along with hundreds of other tourists,
    第二天早晨，坐了一个小时飞机后，我们当天就与其他数以百计的游客一起，参观了一些景点。

5. Anyone tiring of American or fake European culture can reach the Louvre art museum by express railway in less than an hour — from Minnie Mouse to Mona Lisa in a flash.
    任何人厌倦了那里的美式或仿冒的欧式文化了，就可乘快速列车，不到一小时就可到达罗浮宫，一瞬间就从米尼老鼠身边来到了蒙娜·丽莎面前。

6. You must have been driving at seventy miles an hour.
    你刚才一定是以每小时70英里的速度开车。

7. Since that time, racing drivers have reached speeds over 600 miles an hour.
    从那时以来，赛车选手已达到每小时600英里的速度。

8. Standing in high heels inevitably hurts after an hour on foot. This results in aches and pains.
    穿高跟鞋站一个小时会不可避免地对人造成伤害，并会引起疼痛。

9. Since we can't create a 26-hour day we have to decide what things we're going to do."
    由于我们无法让一天有26个小时，所以我们必须确定我们打算做的事情。"

10. 8 a.m. the day of the move, the moving company calls to say they'll be an hour late.
    搬家那天上午八点，搬家公司来电话，说是要晚到一小时。