arlene482021-01-02👍528 Rays of RuanGuYu body is flat. Distribution throughout the world, from the tropics to the pillar of arctic waters, from shallow close to 270 metres deep. Total 9 genera, three families. Rays, round body, or diamond by kissing the pectoral fins wide expansion to the slender tail root, Some species have pointed to kiss, by ministry of cranial beak cartilage formation. Body monochrome or pattern, most species backbones are hard thorns or spines structure, some tail has power generating capacity of the organ. Now, all the rays for fish lays eggs, its “mermaids pouch,” common beaches, rectangular, leathery shell protection. Rays shape sizes: little rays only 50 centimeters; adult, Big rays for 2.5 meters. Rays are harmless, benthic, often buried in the sand bottom part. Swimming pectoral fins on the wavy for beautiful swinging forward. With molluscs, shellfish and fish for food, from the top down, suddenly blunt hunting. 鳐鱼是多种扁体软骨鱼的统称。分布于全世界大部分水区,从热带到近北极水域,从浅海到2700米以下的深水处。共9属,分3科。鳐鱼体呈圆或菱形,胸鳍宽大,由吻端扩伸到细长的尾根部;有些种类具有尖吻,由颅部突出的喙软骨形成。体单色或具有花纹,多数种类脊部有硬刺或棘状结构,有些尾部内有发电能力不强的发电器官。就现在所知,全部鳐类鱼均为卵生,其卵又称“美人鱼的荷包”,常见于海滩,长方形,有革质壳保护。鳐鱼体型大小各异:小鳐成体仅50厘米;大鳐可长达2.5米。鳐鱼无害,底栖,常常部分埋于水底沙中。游动时靠胸鳍作优美的波浪状摆动前进。以软体动物、甲壳类和鱼类为食,由上面突然下冲,扑捕猎物。 给点分
you53o2021-07-22👍420 更上一层楼!(*^__^*) 有不会的可以再问我along the road certainly 当然,的确。 祝你学习进步
三 、texi.英语怎么说
一条酸菜鱼h2021-01-02👍623 taxi 英 [ˈtæksi] 美 [ˈtæksi] n. 租车; 滑行; vi. 乘租车; (指飞机) 面或水面滑行; vt. 用租车运送; 使滑行; [例句]The taxi drew up in front of the Riviera Club. 租车维埃拉俱乐部门口