Primo, the cyclostomes, whose jaws are fused into a flexible ring and whose gill openings are simply a large number of holes, an order consisting of only one family. Example: the lamprey.
第一目,圆口鱼,为一转动,鱼开有许多小孔,这一目只有一科。类型:人目鳗。
关注我们的微信
下载手机客户端
划词翻译
详细解释