noun 下载 🔗分享 尾椎,尾骨。 The final (bottom-most) fused vertebrae at the base of the spine, the tailbone. Examples : "After falling on the ice, she felt a sharp pain in her coccyx. " 她不小心在冰上摔了一跤,感觉尾椎一阵剧痛。 anatomy body medicine physiology organ part structure 与AI对话词汇游戏阅读练习