求翻译：勐腊原始森林近500万亩，素有“绿色宝地”之称。在原始湿润雨林内，生长着高40－70多米高的望天树，架设在望天树上的“空中走廊”，全长2.5公里，它把公路两旁的原始森林连接起来，可在广阔的视野上尽情地领略热带雨林的奇异风光。是什么意思？

Mengla nearly 500 acres of virgin forest, known as "green treasure," said. In the original moist forest, the growth of more than 40-70 meters high tree of heaven, set up a tree in sight day "air corridor", length 2.5 km, it is virgin forest along public roads to link up over a wide field of vision e

Roasting rainforest defines nearly 5 million acres, known as a "green treasure". In the original dry sub-humid rain forest, grown within 40 - 70 meters high high up into the sky, and erected in sight day tree tree of the "air corridor" 2.5 km length, both sides of the road, which would connect prime

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Mengla original 5 million acres of forest, known as "green treasure," said. Within the original humid rainforest, grow high skygazer 40-70 meters high, erected in sight on the tree of "air corridor", 2.5 km in length, it connects highway on both sides of the original forest, on the broad perspective