- fine-tuning them to no longer fly in the air,
不再将其用于飞行 - but to pull off something remarkable...
而是另有它用 - beneath the waves.
在水下使用 - Underwater flight.
水下飞行 - Penguins have sublime buoyancy control...
企鹅拥有卓越的浮力控制能力 - and one of the most streamlined bodies of any animal,
以及动物中最流线型的身体 - making them the world's greatest swimming birds.
这使它们成为 世界上最伟大的会游泳的鸟类