搜搜问问(Ask)和国家地理频道聘请公共关心“2011全国地球日(Earth Day)勾当”，传布环保知识(Environmental knowledge)，介入环保勾当，发起低碳绿色的生存。
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在上周，我们学校举行了环保知识竞赛。
Last week, our school held a competition of environmental protection knowledge.
我可以节约用水、电和纸，不乱扔垃圾圾，积极传播环保知识。
I can save water, electricity and paper, not litter everywhere, and actively spread the knowledge of environmental protection.
公约五：宣传环保知识，普及环保意识，提高每一位员工的环保观念。
Convention 5: To improve the environmental awareness of every employee by promoting environmental-protection knowledge and popularizing the environmental-protection consciousness.
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