and observing the banks and meadows near his home, 观察家旁的河岸和草地时

1. Almost 200 years ago,
   约200年前
2. whilst walking these very paths in the English countryside
   当他走在英国乡下的这些小路上
3. and observing the banks and meadows near his home,
   观察家旁的河岸和草地时
4. Charles Darwin developed
   查尔斯·达尔文发展了
5. his ground-breaking ideas about evolution,
   关于进化的开创性观点
6. casting a new light on the natural world
   一缕光芒照进了自然世界

来自《行星地球 第三季 第一集 Planet Earth S03E01 海岸》第 3 行