Freshwater is the lifeblood of Planet Earth. 淡水是地球的命脉

221. Freshwater is not only a resource for humans.
     淡水不仅是人类的资源
222. It is the home for countless species
     更是无数物种的家园
223. that simply cannot survive without it.
     没有淡水 便无法生存
224. Freshwater is the lifeblood of Planet Earth.
     淡水是地球的命脉
225. [Behind-the-Scenes Footage]
     [幕后花絮]
226. To film the story of the most endangered freshwater dolphin,
     为了拍摄最濒危的淡水河豚
227. the Planet Earth team joined the world's leading expert - Uzma Khan.
     「地球脉动」摄制组与世界顶尖专家乌兹玛·汗展开合作

来自《行星地球 第三季 第四集 Planet Earth S03E04 淡水》第 224 行