Biến mồ hôi thành nước uống
Hiện trên thế giới có khoảng 125 triệu trẻ em không có nước sạch để uống và có hàng ngàn người chết mỗi ngày cũng vì thiếu nước.
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ssOz4buI4buTeUNxS0to4buR4buIWEXDveG7muG7kcOy4bq14bqy4bu1ReG7k+G6tSIgw7Mv4buIw7I=