穿梭

例句：

1. 1. The car shuttledbetween the two stations.
   汽车在两个车站之间来回穿梭。
2. 2. The river shuttles throughthe valley.
   河流在山谷中穿梭流淌。
3. 3.The train shuttles between cities every day.
   火车每天在城市之间穿梭。