life on land would never be the same again. 陆地上的生活将永远改变

190. ...that had already found its feet.
     已经长出腿来
191. The evolution from fin to limb took millions of years.
     从鳍到肢的进化用了数百万年
192. But once completed,
     但一旦完成
193. life on land would never be the same again.
     陆地上的生活将永远改变
194. The age of amphibians
     两栖动物的时代
195. had begun.
     已经开始
196. Today, there are more than 8,000 species of amphibian.
     今天有超过8000个两栖动物物种

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 193 行