Summary:

• **Robots Are Getting Smarter and Stronger**: Scientists in China have created humanoid robots called Walker S2 that can walk on two legs like humans do. These robots are being trained to help patrol borders, which means they can walk around and watch areas just like security guards do.

• **Robots Can Do Jobs That Are Hard for People**: These special robots are designed to handle difficult tasks in places that might be dangerous or uncomfortable for humans. By using robots for border patrol, people can stay safer while the robots do the work instead.