translation.en: We're going to simulate the gait of a particular child and the surgeon can then work on that simulation and try out different ways to improve that gait, before he actually commits to an actual surgery.
translation.zh: 我们想模拟每个孩子的步态， 医生能够用这个模拟人物， 试不同的手术方案，来帮助调整步态， 在他们真正做手术之前。