One possible version:

       Here is a robot. It is called "Xiaohu".  There is a computer inside its body. It looks like a tiger.

When you see it for the first time, you may be frightened. In fact, it is gentle and polite. It can help us

do housework such as cleaning a room, washing clothes and making the bed. When the room is dirty,

it will begin to work at once.It can also watch over a room instead of humans.It is clever and hardworking·In short，this robot is very useful to us.