Only half of the calories produced on croplands are available for human consumption. The calories ‘lost’ to inefficiency (49.9%) is enough to support 7.2 billion people. 39.7% of the lost calories are from beef production, which requires 33 calories of feed for every calorie of boneless meat.

· · 来源：user百科

伊朗空袭中受伤的哈梅内伊顾问离世02:34

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But as a concept gadget, I think the Legion Go Fold is a great showcase of how new technology (in this case, a flexible display) can bring new capabilities and greater flexibility to existing categories. And who knows, if a lot of people like the idea, it might encourage Lenovo to refine it and put it on sale for real. I would just be a bit worried about pricing, because all these components won't come cheap.

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伊朗民众组成“人链”

图片来源：谢尔盖·克拉斯诺乌霍夫 / 俄新社