flexible dummy bar

例句：

1. 1. The flexible dummy bar is a great tool for teaching kids about balance and coordination.
   灵活的假人棒是教孩子们平衡和协调的好工具。
2. 2.The flexible dummy bar was used to simulate the movements of a real person during training exercises.
   灵活的假人棒被用来模拟真实的人在训练中的运动。
3. 3.The flexible dummy bar was an essential part of the gymnastics equipment, providing a safe and effective way for athletes to practice their skills.
   灵活的假人棒是体操设备中必不可少的一部分，为运动员提供了一种安全有效的练习技巧的方式。