Usually, polio affects the lower limbs.

通常，小儿麻痹症影响下肢。

During the torch relay, some people with disabilities will use upper and lower limb assisted exoskeleton robots to help them carry the torch.

在火炬传递过程中，一些残疾人会使用上下肢辅助外骨骼机器人来帮助他们携带火炬。

In poor areas like Compton, as many as 10.7 out of 1,000 diabetic adults ages 45 and older wound up losing a lower limb due to diabetes complications.

在康普顿这样的贫困地区, 1000位年龄在45岁以上受糖尿病困扰的人中多达10.7人由于并发症最终失去下肢。