At a fair at the Shenzhen Convention and Exhibition Center, one of the highlights is many new and practical robots.

Robots are sweeping the floor, greeting guests, helping the elderly, and even playing tennis. The Chinese Academy of Sciences has brought more than twenty kinds. This one can read our minds and carry out instructions. But when many people are around, it can't fix its attention. This one, however, can carry out the instructions despite the noise. And this robot can heat up bread in the microwave oven.