20分鐘居家全身性徒手訓練 (無跳躍、無裝備) At-home 20min Total Body HIIT Workout (No jumping/ equipment needed) 20分鐘居家全身性徒手訓練 (無跳躍、無裝備) At-home 20min Total Body HIIT Workout (No jumping/ equipment needed) About Author VideoBook See author's posts