To film the story of the most endangered freshwater dolphin, 为了拍摄最濒危的淡水河豚

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
228. The first time I saw Indus dolphin, I was just amazed.
     我第一次见到印度河豚时 简直惊呆了
229. It's a beautiful creature, you know,
     它是一种美丽的生物

来自《行星地球 第三季 第四集 Planet Earth S03E04 淡水》第 226 行