dorsal fin
背鳍
常用释义
英式发音
美式发音
基本释义
- 背鳍：许多鱼类（如鳟鱼、梭鱼和鲨鱼）以及一些海洋哺乳动物（如海豚）背部突出的扁平薄的身体部分。
例句
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1·The first dorsal fin is black at the front.第一个（刺背鳍是在前面的黑。
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2·The shark's dorsal fin was cut off by the fisherman.鲨鱼的背鳍被渔夫割了下来。
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3·Its sail-like first dorsal fin provides stability while swimming.帆状的第一背鳍在游动时提供了稳定性。
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4·Its dorsal fin was in front of me. I was screaming for help.它的背鳍就在我的前面，我尖声呼救。
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5·His dorsal fin was down and his huge pectorals were spread wide.它的脊鳍朝下耷拉着，巨大的胸鳍大张着。
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6·We know this because we can distinguish the male by their large dorsal fin .我们能知道是因为可由大背鳍区别为雄性。
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7·Now he speeded up as he smelled the fresher scent and his blue dorsal fin cut the water.它闻到了这新鲜的血腥气，此刻正加快了速度，蓝色的脊鳍划破了水面。
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8·Large elongate scale less oceanic fishes with sharp teeth and a long sail-like dorsal fin.细长的大型海生无鳞鱼，有尖牙和船帆形的长背鳍。
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9·Dorsal fin, tail fin and fat fins slightly yellow, pectoral fin, and ventral fin Tunqi gray.背鳍、脂鳍和尾鳍稍带浅黄色，胸鳍、腹鳍和臀鳍灰白色。
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10·A small North American freshwater fish (Stizostidion canadense) having a spotted, spiny dorsal fin.一种产于北美的小型淡水鱼（鰤鲈） ，长有带斑点的刺状脊鳍。