Many people live a low-carbon life today. My uncle Thomas is one of them. He is a lawyer. He has a nice car. But he often goes to work by subway. When he is at work, he always prints on both sides of the paper. It's a good way to save paper, and to save trees. His home is not far from his office. He often goes home on foot after work. He always remembers to turn off the TV when he isn't watching it. When he is brushing his teeth, he never leaves the water running. I think I should learn from my uncle to live a low-carbon life.
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