Some 20 million years later, fish with jaws began sweeping the sea.

大约两千万年后，有颌的鱼类开始席卷大海。

Knight raised the glass to his eye, and swept the sea till the Puffin entered its field.

奈特将玻璃杯举到眼前，扫过大海，直到海雀进入它的视野。