milleped

例句：

1. 1. The train travels at a speed of 20 miles per hour.
   火车以每小时20英里的速度行驶。
2. 2. The distance between the two cities is approximately 30 miles.
   两座城市之间的距离大约是30英里。
3. 3.The marathon race covers a total of 42 miles.
   马拉松赛跑全程42英里。