常見例句雙語例句A complex sheet of embryonic cells in craniate vertebrates, formed by association of part of the mesoderm with the ectoderm and developing as the internal body wall.顱骨脊椎動物中一層復雜的胚體細胞,由部分中胚層及外胚層聯(lián)合組成,形成身體內壁。odict.net 返回 craniate