They grow so fast, 它们长得飞快

40. Eventually the earth can't soak up any more,
    最终土壤无法继续吸收雨水
41. and the grassland undergoes a radical change.
    草原也完全变了样子
42. Many plants would drown here, but grasses thrive.
    许多植物会被淹死 而草本却会茁壮生长
43. They grow so fast,
    它们长得飞快
44. their leaves quickly rise above the water and into the sunlight.
    茎叶迅速伸出水面 沐浴在阳光下
45. Here in southern Africa,
    在南非
46. water transforms one of the most remarkable grasslands on Earth,
    降水能让世界上最奇特的草原之一改头换面

来自《行星地球 第二季 第五集 Planet Earth S02E05 草原》第 43 行