今年世界环境日的主题为“众多物种·同一个星球·同一个未来”。
The theme of this year’s World Environment Day, “Many Species. One Planet.
本周五是世界预防自杀日（WorldSuicide Prevention Day），今年的主题是关注全球自杀人群的个体差异和他们所处环境差异。
This Friday is World Suicide Prevention Day. This year's observance is meant to bring attention to the differences among suicidal individuals and their situations around the world.
为了促进全球的环境活动，地球日网络提出“十亿绿色行动”作为2011年世界地球日的另一个主题。
To catalyze global environmental activities, the Earth Day Network developed its "a Billion Acts of Green" campaign as another theme for Earth Day 2011.
今年世界环境日的主题是“森林：大自然为你服务”，强调森林和其他生态系统对社会——特别是穷人所能带来的数万亿美元的价值。
The theme of World Environment Day this year, "Forests: Nature at Your Service", emphasizes the multi-trillion dollar value of these and other ecosystems to society - especially the poor.
今年世界环境日的主题是“森林：大自然为你服务”，强调森林和其他生态系统对社会——特别是穷人所能带来的数万亿美元的价值。
The theme of World Environment Day this year, "Forests: Nature at Your Service", emphasizes the multi-trillion dollar value of these and other ecosystems to society - especially the poor.
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