常见例句Having a urochord. 有尾索的primitive marine animal having a saclike unsegmented body and a urochord (a notochord) conspicuous in the larva. 有囊狀不分段形狀身躰的原始海洋動物，幼蟲堦段有明顯的脊索。urochord. 尾索，尾索動物 返回 urochord