1.
Seals, turtles and penguins have flippers.
海豹、 海龟、 企鹅均有鳍状肢.
2.
A flipper or flattened appendage of certain animals.
桡足某些动物身上的鳍状肢或扁平附肢
3.
any of various large turtles with limbs modified into flippers; widely distributed in warm seas.
各种有鳍状肢的大型海龟；广泛分布于温暖水域。
4.
One of the jointed appendages of an animal, such as an arm, a leg, a wing, or a flipper, used for locomotion or grasping.
肢，翼动物身上由关节相连的附肢，如胳膊、小腿、翅膀或鳍状肢，通常用于运动或抓取
5.
aquatic carnivorous mammal having a streamlined body specialized for swimming with limbs modified as flippers.
水生食肉型哺乳动物，流线型身体适于游泳，鳍状肢。
6.
any of various aquatic and land reptiles having a bony shell and flipper-like limbs for swimming.
各种有骨壳和适于游泳的鳍状肢的水栖或陆栖爬行动物。
7.
large whalebone whale with long flippers noted for arching or humping its back as it dives.
有长的鳍状肢的大型须鲸，以其潜水时背部为拱形或有肉锋而闻名。
8.
An arm or a homologous anatomical structure, such as a flipper or wing.
臂的同源结构臂或同源的解剖结构，如鳍状肢或翅膀
9.
any of several seals lacking external ear flaps and having a stiff hairlike coat with hind limbs reduced to swimming flippers.
几种没有外耳的海豹，有坚硬的发状皮毛，后肢退化为用于游泳的鳍状肢。
10.
Pliosaurs are thought to have been ambush predators, using their giant flippers to launch ferocious attacks.
上龙被认为是一种埋伏型猎食者,使用它们巨大的鳍状肢发动凶猛的进攻.
11.
A featherlike or plumelike organ or part, such as a small fin, or one of the appendages of a crinoid.
小鳍，小鳍状物一种象羽状或羽毛状的器官，如小鳍或海百合类的附属肢体之一
12.
Likewise, the animal's tail fin and flipperlike hind limbs suggest an aquatic lifestyle.
牠的尾鳍与鳍状的后肢也同样显示了水中的生活方式。
13.
any of two families of large herbivorous aquatic mammals with paddle-shaped tails and flipper-like forelimbs and no hind limbs.
两种大型海生食草类哺乳动物之一，特征是浆状尾、鳍状前肢并无后肢。
14.
An anterior appendage, such as a leg, wing, or flipper.
前肢，上肢动物前部的附肢，如前腿、前翅、前鳍等
15.
Whales, seals, penguins, and turtles have flippers.
鲸、海豹，企鹅和海龟均有鳍形肢。
16.
One of the bony spines supporting the membrane of a fish's fin.
鳍刺支持鱼鳍膜的骨状刺之一
17.
an order of spiny-finned fish in the superorder Acanthopterygii.
棘鳍类总目中刺状鳍鱼类的一个目。
18.
any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs.
中生代的几种水生爬行动物，身体象海豚，有背鳍和尾鳍，四肢形如浆。