noun 下载 🔗分享 掌骨 Any of the bones of the metacarpus. Examples : "The doctor examined the X-ray, pointing to the metacarpals in my hand to show where the fracture was. " 医生检查了X光片,指着我手上的掌骨,说明骨折的位置。 anatomy body medicine physiology organ part 与AI对话词汇游戏阅读练习