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第201页

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It can help clean up algae on the lake .

To dry the rubbish .

Making the robot work without human control .

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When we face difficulties , we should be creative and find ways to solve them . Also , we should keep working hard to improve our work .

I invented the new robot mainly to help the elderly at home. It can cook meals and do some washing at a fixed time. When old people feel lonely, it can also have a chat, play chess or do exercise with them. What's more, it can deal with some emergencies. For example, if an old man falls ill suddenly, the robot will call 120 for help.

I'm sure my new invention will be a great help to the elderly. I think in the future people will live a more comfortable life with the help of the new robots.