walking aid

例句：

1. 1. He uses a walking aid to help him get around.
   他使用助行器来帮助他行走。
2. 2.The elderly need walking aids to make their daily activities easier.
   老年人需要助行器来使他们的日常活动更容易。
3. 3. The disabled have access to various assistive technologies that can help them walk more easily.
   残疾人可以使用各种辅助技术来帮助他们更轻松地行走。