- The greatest invaders of them all...
其中最伟大的入侵者 - ...are the gannets.
是大鲣鸟 - Their keen vision means they can spot a ball of fish a mile away.
敏锐的视力 令其能在1.6公里外发现鱼群 - Diving from altitude,
它们从空中俯冲 - they pierce the surface at close to 90 kilometers an hour.
以接近每小时90公里的速度刺入水面 - A specially adapted skull
专门进化了的颅骨 - and retractable wings
和可收起的翅膀
Diving from altitude, 它们从空中俯冲
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