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空气污染,能源紧缺,早已是不争的事实!这些已不仅是哪个国家,而是全人类必须共同面对的!这才是我们亟待解决的问题……
Air pollution and energy shortages have long been an indisputable fact! These are not the only countries that have to face all mankind together! This is what we are going to solve ...