of four limbs and a backbone 拥有四肢和一根脊椎

59. One that also came from the water.
    这个王朝也是来自水中
60. The amphibians...
    两栖动物
61. ...whose novel body plan
    它们新颖的身体结构
62. of four limbs and a backbone
    拥有四肢和一根脊椎
63. would prove an enduring blueprint for success.
    成为了持久成功的蓝图
64. Their reach was limited by their ties to water.
    它们与水的关系 限制了它们的活动范围
65. But they spawned another dynasty with no such binds.
    但它们催生出了 另一个不受这种束缚的王朝

来自《我们星球上的生命 第一季 第一集 Life on Our Planet S01E01 生命法则》第 62 行