- They can fly in any direction,
它们可以朝任何方向飞行 - pull off the tightest turns...
完成最急的转弯 - and accelerate faster than a fighter jet.
加速比战斗机更快 - A winning design
如此成功的设计 - that has remained almost the same for hundreds of millions of years.
已经保持了数亿年 几乎不变 - And yet, living in the same prehistoric swamps,
然而在同一片史前沼泽之中 - another group of animals were undergoing their own radical change.
另一群动物正在经历巨变
A winning design 如此成功的设计
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