that would change the landscape forever. 将永远改变陆地的样貌

35. they soon carpeted the land,
    很快就铺满陆地
36. which they ruled undisturbed for the next 40 million years.
    在之后的4000万年 不受滋扰地统治着陆地
37. But a green revolution was coming...
    但是一场绿色革命即将到来
38. that would change the landscape forever.
    将永远改变陆地的样貌
39. Key was the evolution of a new compound,
    其关键是一种新化合物的进化
40. lignin.
    木质素
41. Lignin strengthened the plants' cell walls...
    木质素加强了植物的细胞壁

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 38 行