Duobot am robot. He can has translate. No use him. He sit and watch you translate.

Are you talking about the Duels? The are only available on iPod/iPhone/iPad.

If you have an iOS device... DuoBot can be used after getting duolingo for dueling with others without game center or if you are bored of playing your friends. DuoBot, unlike NinjaBimic said, can translate but does not copy your answers. If you are using a computer to access immersion... DuoBot will help you translate sentences so you can assist others in immersion. This can help people around the world see a webpage in their native language.