Truy tìm máy lọc bí ẩn của khí quyển
Tự nhiên sử dụng một chất có khả năng phá hủy tác nhân gây ô nhiễm để làm sạch không khí, nhưng cho tới nay loài người vẫn chưa tìm ra chất này.
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urc2IUBOI+G7lD1OLDU9TiTGryPigJ1HTsahKOG7uHrhuqEu4buUI+G7lOG6ocOhTsWoJSEjTizhuqHDmSFITsOAI+G7sChOw4A9IU7DoOG6s8av