the water takes on a new, more erosive power. 水便有了一股新的、更强的侵蚀力
Driven by gravity, they're the most erosive forces on the planet. 它们借助地心引力 成为地球上最大的侵蚀力量
They're the most powerful erosive force on our planet. 它是地球上最大的侵蚀作用