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人们往往会因为绝望而死亡,如果机器人能传递手机,他们就不会觉得孤单;如果能运送饮水和食物,他们就能多一线生机。最近,日本防灾应急机构测试了一种宛如小坦克车的
People often die of hopelessness and they do not feel lonely if they can deliver cell phones, and they can live more if they can deliver water and food. Recently, the Japanese emergency response agencies tested a kind of small tank car