- allowing the giants of today to evolve.
使如今的巨兽得以进化 - The mammals had gone from tiny land animals...
哺乳动物从微小的陆地动物 - to being bigger than dinosaurs.
变得比恐龙还大 - With each giant breath,
通过大口呼吸 - they use oxygen far more effectively than Maiacetus.
它们利用氧气的效率远高于慈母鲸 - And being warm-blooded,
而且由于是温血动物 - their muscles are always at a temperature for maximum performance...
肌肉始终保持在最佳性能的温度
With each giant breath, 通过大口呼吸
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