epinotal spine

例句：

1. 1.The snake's epineural spine is a distinctive feature of its body.
   蛇的背刺状脊柱是其身体的一个独特特征。
2. 2.The epineural spine helps the snake to move quickly and efficiently.
   背刺状脊柱有助于蛇快速而有效地移动。
3. 3. In some species, the epineural spine can be used as a defense mechanism against predators.
   在某些物种中，背刺状脊柱可以作为一种防御机制来抵御捕食者。