1. Our target area was 250 miles to the north.
    我们的目标区在向北250英里处。

2. It can be unpleasant to live even several miles from an aerodrome;
    即使住在离机场几英里以外的地方，机场的噪音也会使人难受。

3. It suddenly dawned on me that this express was not roaring down the line at ninety miles an hour, but barely chugging along at thirty.
    我突然感到这趟快车并没以时速90英里的速度呼啸前进，而是卟哧卟哧地向前爬行，时速仅30英里。

4. I had come ten miles since leaving the town,
    从小镇出来，我走了10英里。

5. In a long drop, they reach speeds of 60 miles an hour and more.
    在一个长长的跌落过程中，它们可以达到每小时60里甚至更快的速度。

6. In Flagstaff, Arizona, a thousand miles of bike trails lead into the San Francisco Peaks, the highest summit in the state.
    在亚利桑那州的弗来格斯达佛市，有1000英里长的自行车道通向圣弗朗西斯科山峰，那是该州的最高峰。

7. In seconds, we reached 145 miles per hour.
    几秒钟后，我们的速度就达到了每小时145英里。

8. From the shore line, out to a distance which may be anywhere from a few miles to a few hundred miles, runs the gentle slope of the continental shelf, geologically part of the continents.
    从海岸线向大海延伸几英里到几百英里的区域是大陆架慢坡，从地质学上来说，它是大陆的一部分。

9. Five days ago, the policeman told him, the bicycle was picked up in a small village four hundred miles away.
    那位警察对他说，那辆自行车是5天前在400英里外的一个小村里发现的，

10. Forests have been cut down at the rate of 278 square miles a year.
    森林正在以每年278平方英里的速度被砍伐。