Without their roots to bind the soil together... 没有了根来固定土壤

337. was now its destroyer.
     如今却成了生命的毁灭者
338. The toxic rain poisoned the ground...
     毒雨毒害大地
339. killing off the plants.
     灭绝植物
340. Without their roots to bind the soil together...
     没有了根来固定土壤
341. entire ecosystems were washed away.
     整个生态系统被冲走
342. And yet, there was something even more destructive in the air.
     然而空气中 还有一种更具破坏性的东西
343. A silent killer.
     一位隐形杀手

来自《我们星球上的生命 第一季 第三集 Life on Our Planet S01E03 入侵大地》第 340 行