tailbone尾: hairs on a horse's tail spik ...骶骨: sacrum尾骶骨伤: fracture of sacrum and cocyx骶骨: sacrum◇骶骨粗隆 tuberositas sacralis; 骶骨化 sacralization; 骶骨痛 sacraligia; 骶骨指数 sacral index盆骶骨: pelvisacral; pelvisacrum下载手机词典可随时随地查词查翻译