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.
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