a thick, strong ring made of rubber or a similar material, used in exercises to make the muscles stronger

You can build up your muscles at home using dumbbells or resistance bands. 你可以在家里用哑铃或阻力带锻炼肌肉。

Pull against a resistance band wrapped around the opposite leg. 将缠绕在另一条腿上的阻力带朝相反方向拉。