osteoncus

例句：

1. 1.The osteoncus of the dinosaurs is a fascinating subject for paleontologists.
   恐龙的椎骨对于古生物学家来说是一个令人着迷的主题。
2. 2.The study of osteoncus has led to new insights into the evolution of our bodies.
   对椎骨的研究为我们的身体进化提供了新的见解。
3. 3. The osteoncus of the crocodile is unique in its ability to absorb water and oxygen through its skin.
   鳄鱼的椎骨具有通过皮肤吸收水分和氧气的独特能力。