translation.en: And they asked us this question. They say, "Why model just in the sagittal plane or the vertical plane, when you're telling us these animals are moving in the horizontal plane?" This is a good question.
translation.zh: 他们反问了我们一个问题，他们说，“为什么 只在径向平面或者纵向平面建模 你不是说这些动物 在横向平面里也动吗？”这是个好问题