noun 下载 🔗分享 脊柱，脊梁。 The series of vertebrae, separated by disks, that encloses and protects the spinal cord, and runs down the middle of the back in vertebrate animals. Examples : "The doctor examined the patient's backbone to see if there was any damage. " 医生检查了病人的脊柱，看看有没有受伤。 anatomy body organ physiology biology 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 主干，骨干，支柱。 Any fundamental support, structure, or infrastructure. Examples : "Before automobiles, railroads were a backbone of commerce." 在汽车出现之前，铁路是商业的支柱。 structure system organization 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 骨气， 脊梁。 Courage, fortitude, or strength. Examples : "He would make a good manager, if he had a little more backbone." 如果他再有点骨气，就能成为一个好经理。 character mind attitude ability 与AI对话词汇游戏阅读练习
