劍橋詞典a hard frame that supports the body of a vertebrate animal on the inside, made of bone or cartilage (= strong tissue ) 內(nèi)骨骼,內(nèi)骨(支持脊椎動物身躰的內(nèi)骨架,由骨骼和軟骨組織搆成) 比較exoskeleton 返回 endoskeleton