除了在亚马逊平原搜寻橡胶树种和在南美建立试验性的种植园外，该项目还有一些新奇的生产橡胶的计划，包括在美国41个州种植蒲公英属植物。
In addition to searching the Amazon and establishing experimental plantations in Latin America, the program came up with some novel plans to produce rubber including planting Dandelions in 41 states.
在一项新的研究中，人们发现了曾经被森林覆盖着的数百个圆、方形、和其他几何形状，它们暗示在亚马逊平原曾经存在一个未知的古老而繁荣的社会。
Hundreds of circles, squares, and other geometric shapes once hidden by forest hint at a previously unknown ancient society that flourished in the Amazon, a new study says.
研究人员说，一般而言，亚马逊肥沃的冲积平原是古代文明的繁荣之地，但据说更为宽阔的高地却人迹罕至。
Ingeneral, the Amazon's fertile floodplains have been popular sites forancient civilizations, while the sparser uplands have been thought tobe largely devoid of people, the researchers say.
研究人员说，一般而言，亚马逊肥沃的冲积平原是古代文明的繁荣之地，但据说更为宽阔的高地却人迹罕至。
Ingeneral, the Amazon's fertile floodplains have been popular sites forancient civilizations, while the sparser uplands have been thought tobe largely devoid of people, the researchers say.
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