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This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

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More stones came flying. She tried to crawl toward the tent, but Cohollo caught her. Fingers in her hair, 更多石块朝她飞来，她试图往帐篷爬去，却被科霍罗一把攫住头发， he pulled her head back and she felt the cold touch o

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