坐健身球上，收腹1分钟。
抱着宝宝在健身球或分娩球上轻轻弹跳。
Bouncing on an exercise ball or birthing ball while you hold her.
人体卧于瑞士健身球上，两膝弯曲，足平放于地面。
Lie on a Swiss ball with your knees bent and feet flat on the floor.
在你的健身房中进行有趣的有氧拳击操和健身球活动！
Pump up your gym with cardio kickboxing and fitness - ball fun!
在你的健身房中进行有趣的有氧拳击操和健身球活动！
Pump up your gym with cardio kickboxing and fitness - ball fun!
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