..becomes little more than a green desert. 变成了一片绿色沙漠

230. they extract nutrients from the soil
     以至于它们从土壤中吸收营养的速度
231. faster than they can be replaced.
     快于能被取代的速度
232. And what was once a rich and complex world...
     曾经丰富而复杂的世界
233. ..becomes little more than a green desert.
     变成了一片绿色沙漠
234. And at just five years of age...
     这些桉树生长五年后
235. ..their lives are ended.
     便会受到砍伐
236. They're felled and taken away.
     轰然倒下 随后被运走

来自《行星地球 第三季 第五集 Planet Earth S03E05 森林》第 233 行