Hoàng Thu Hằng
@thuhang
When will there be new breakthroughs in renewable energy usage technology? https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcS6XUDE0d71eAJJg8PStVzT4qHBj5HHzwLonA&s
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Quỳnh Hoa
@quynhhoa
Holy smokes! Your passion for this subject is contagious!
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