套袋跑

例句：

1. 1. She decided to runin a bag for exercise.
   她决定用袋子跑步来锻炼。
2. 2. The marathon runners ran with a bag to save energy.
   马拉松选手们用袋子跑步以节省能量。
3. 3. The children ran in a bag toavoid the rain.
   孩子们用袋子跑步以避免下雨。