Collectively they've worn down mountains 它们共同抚平高山

253. 400,000 greater snow geese flock to the estuaries along the Atlantic coast of the United States
     40万只大西洋雪雁成群飞往 美国大西洋海岸的河口地带
254. to rest and refuel on their long migratory journeys.
     并在此休整 准备继续长途迁徙
255. This is the end of the river's journey.
     这是淡水之旅的终点
256. Collectively they've worn down mountains
     它们共同抚平高山
257. and carried them to the sea.
     把它们带向大海
258. And all along the way,
     在整个行程中
259. their fresh water has brought life and abundance to planet Earth.
     淡水为地球带来了无数生机与富饶
260. [The End]
     [本集结束]

来自《行星地球 第一季 第三集 Planet Earth S01E03 淡水》第 256 行