sandow

例句：

1. 1.He used to play football with his friends in the park, but now he only practices with a sandow.
   他以前在公园里和他的朋友们踢足球，但现在他只和沙袋练习。
2. 2. The soldier was injured during the sandow training exercise.
   士兵在沙袋训练时受伤了。
3. 3. The coach instructed the players to use the sandow for their exercises.
   教练指示球员们使用沙袋进行锻炼。