half-way unit

例句：

1. 1. The caris designed for the half-way pointbetween the city and the countryside.
   这辆车是为城市和乡村之间的中途点设计的。
2. 2. Theteam decided to split into two groups,each with a half-way unit ofplayers.
   团队决定分成两组，每组有一半的队员。
3. 3.The marathon was divided into threestages, each with its own half-way unit.
   马拉松比赛分为三个阶段，每个阶段都有自己的中途点。