Is the brain child of Yifan Zhang and Geoff Oberhofer, who thought of an effective way to motivate people to visit the gym regularly.
张一凡和杰夫·奥博欧佛想到一种有效的方法鼓励人们定期参加健身——健身条约。
Is the brain child of Yifan Zhang and Geoff Oberhofer, who thought of an effective way to motivate people to visit the gym regularly.
张一凡和杰夫·奥博欧佛想到一种有效的方法鼓励人们定期参加健身——健身条约。
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