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Robots are very important in our daily life now. People like robots because they can do things for us. They can do housework. They can deal with data (處理數(shù)據(jù))fast. Some people think robots can do everything nicely.1.. For example, robots have a hard time picking up things. This may make you feel surprised because even babies can pick up things easily. That’s because our brains tell us how to use our hands to hold things. But robots can’t understand it. So they often break or drop things.

2.. Among them is Ken Goldberg from University of California, Berkeley, US. He has studied the problem for years. 3.. He built a database (數(shù)據(jù)庫(kù))for robots. All kinds of information about a thing, such as its size and shape are in the database. 4.. In this way, the robot can pick up the thing easily.

A. They can even go into space.

B. Finally, he came up with an answer to the question.

C. Many scientists are trying to solve this problem.

D. Before a robot picks up a thing, it can find the information about the thing.

E. But some things that are easy for us are difficult for robots.

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