All dinosaurs have hip joints that support the legs more or less straight under the body.

所有恐龙都有髋关节，或多或少地支撑身体下方腿。

It can be safe as long as the swaddling allows a baby's legs to bend up and out at the hips, allowing the hip joints to develop normally.

只要能保证襁褓让宝宝腿可以弯曲并且位置合，骨关节能够正发育，那就是安。

Wow! She is really hyper flexible. It's hypermobility, not just in the knee joint, but in the hip joint as well. Cause to do that whole rotation there, I could see that causing a significant problem medically down the line.

哇 她真超灵活 这是关节过度活动综合征 不仅是膝关节 髋关节也是 因为这一整套旋转动作做下来 可以预料这样下去会导致一个重大医学问题。

Will replacement of a hip joint become more commonplace? Could a doctor operate on one of our organs without having to invade our bodies? Could surgery be performed with the aid of a small that it would be measured in millimeters?

医生能够不触及人体就能对某个器官动手术吗? 手术能够借助小型照相机进行吗? 照相机镜头直径可能小到毫米以下吗?