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File photo taken on April 10, 2008 shows pupils from Dongjiaominxiang Primary School distributing self-made environmental-friendly shopping bags to a man at a market in Beijing, capital of China. (Xinhua/Zhou Liang)
File photo taken on April 10, 2008 shows pupils from Dongjiaominxiang Primary School distributing self-made environmental-friendly shopping bags to a man at a market in Beijing, capital of China. (Xinhua/Zhou Liang)