... MeadWestvaco Corporation 密得公司 National Arbor Day Foundation 国家植树日基金 NCASI - National Council for Air and Stream 国家大气河流委员会 ...
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The National Arbor Day Foundation has challenged many cities to earn its "Tree City USA" flag by planting and protecting more trees.
国家植树节基金会向许多城市发起挑战，要求它们通过种植和保护更多的树木来赢得那面“美国树城”的旗帜。
Check out the NADF (National Arbor Day Foundation) online to find out more about planting a tree in your area or how to volunteer in an urban center.
查看国家植树节基金会网能找到更多有关在你的社区栽棵树或者如何在市中心当志愿者的信息。
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