常见例句This primary bone tumor mainly occurs in the diaphysis of long bones of children and young adults.There is a slight male predominance.這種原發性骨腫瘤主要見於兒童與青少年的長骨骨乾，稍多見於男性。long bone diaphysis fractures in lower limbs下肢長骨乾骨折 返回 diaphysis