tetrameter

例句：

1. 1.The distance between the two cities is about a quarter-mile apart.
   两座城市之间的距离大约是四分之一英里。
2. 2. She walked for eight hours to reach the destination in the eighth of a mile.
   她走了八个小时，以八分之英里的距离到达了目的地。
3. 3. The teacher divided the class into four groups, each consisting of four students.
   老师将班级分成四个小组，每个小组有四名学生。