Over tens of millions of years, its ancestors repurposed their wings, 经过数千万年 它们的祖先改变了翅膀的用途

337. They're joined by an extraordinary bird.
     还有一种非同一般的鸟
338. The penguin.
     企鹅
339. And this is the Galapagos penguin.
     这是加拉帕戈斯企鹅
340. Over tens of millions of years, its ancestors repurposed their wings,
     经过数千万年 它们的祖先改变了翅膀的用途
341. fine-tuning them to no longer fly in the air,
     不再将其用于飞行
342. but to pull off something remarkable...
     而是另有它用
343. beneath the waves.
     在水下使用

来自《我们星球上的生命 第一季 第六集 Life on Our Planet S01E06 灰烬中重生》第 340 行