Brazil, the world's fifth largest country by area, has 5.3 million square kilometers of jungle and forests — mostly in the Amazon river basin — of which only 1.7 million are under state protection.

巴西是世界上国土面积第五大的国家，有530万平方公里的森林覆盖面积——大部分是在亚马逊河流域——但其中只有170万平方公里的森林受国家保护。

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Deep in the jungle of the Congo River basin, far from the eyes of most of the world, a largely forgotten African war is being fought.

BBC: Congo Brazzaville's hidden war

The Maliau Basin may be one of the most primeval destinations in Sabah: a bowl-shaped jungle depression surrounded by unscalable jungle mountains that was unexplored until World War II, when it was spotted from the air by an Allied pilot.

BBC: Borneo��s Sabah off the permit path