有长鳍的

Any of various herbivorous aquatic mammals of the genus Trichechus, having paddlelike front flippers and a horizontally flattened tail and found in warm coastal waters of Florida, northern South America, West Africa, and the Caribbean.

海牛一种海牛属食草性水生哺乳动物，长有蹼状前鳍，居中扁平的尾巴，产于美国佛罗里达州、南美洲北部、西非和加勒比海地区海岸温暖的水域中

The aquarium has seven of the 18-inch (45-centimeter) sea dragons, which resemble Dr. Seuss characters, with long aardvark -like snouts, colorful sea horse bodies and multiple paddle-like fins.

水族馆有七只18英寸(45厘米)海龙，像苏斯博士的描述，有个像土豚的长鼻子，彩色的海马身体和若干像桨一样的鳍。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。