dorsal fin

Any of numerous compressed deep-bodied tropical fishes with sandpapery skin and erectile spines in the first dorsal fin.

多种身体扁平细长的热带鱼，皮肤粗糙如砂纸，前部的背鳍可直立如硬刺。

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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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First dorsal fin dusky to black.

第一背鳍暗色到黑色的。

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It is not unusual to see a striper's dorsal fin whizzing past you while casting in knee deep water.

这不是不寻常的看到一个变色的背鳍驰驱，过去你而铸造的膝盖深的水。

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any of several whales of the family balaenidae, characterized by a large head, whalebone plates in the mouth, and absence of a dorsal fin.

露脊鲸：露脊鲸科中的几种鲸，特征为头部硕大、嘴边长有鲸须而无背鳍。

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Largest family of living sharks; found worldwide esp. in tropical waters; dorsal fin lacks spines: requiem sharks including tiger sharks and soupfin sharks.

最大的鲨鱼科；世界各地都有，尤其是在热带水域；背鳍无刺；包含鼬鲨和油翅鲨的真鲨科。

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Dogfishes having a spine in each dorsal fin. It strikes a bug's back with is forelegs and feelers.

背鳍上各有一刺的角鲨鱼。它（蚁）前腿和触角敲打臭虫的背部。

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The dorsal fin is ornamented with these two colours.

空气垂直舵由这两色装饰.

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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.

英汉文学 - 老人与海

From the butterfish genus, whose oval bodies are very flat, I observed several adorned in brilliant colors and sporting a dorsal fin like a sickle, edible fish that, when dried and marinated, make an excellent dish known by the name karawade;

至于躯体压缩作蛋形的硬鳍属中，我看到颜色鲜艳的燕雀鱼，脊鳍像镰刀一样，那是可以食用的鱼，晾干浸在盐水中，称为卡拉瓦的美味的好菜；

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a shark's dorsal fin

鲨鱼的背鳍

《牛津高阶英汉双解词典》

a primitive, bony freshwater fish(amia calva)of central and eastern north america, with a long, spineless dorsal fin.

弓鳍鱼北美洲中部和东部的一种原始、多骨的淡水鱼（弓鳍鱼弓鳍鱼属），具有长的无脊的背鳍

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male lollypop darters have knobs along the top of their dorsal fin that swell large and bright yellow& presumably to mimic eggs and inspire females to lay some.

雄性小鳍镖鲈沿背鳍顶部生有膨大的明黄色小疙瘩，估计这是模仿卵的样子来诱导雌性产卵。

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The dorsal fin is spinous.

背鳍有很多刺.

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steller's goldfish once came, it was classified as varieties upper. we all know, the balance of dorsal fin in fish organs, nature does not.

虎头金鱼一经问世，就被列为上等品种。众所周知，背鳍是鱼类的平衡器官，自然界中没有。

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Bowhead whales are one of just a few whales that can live year-round in the Arctic because they have no dorsal fin.

北极露脊鲸是少数一整年待在北极的一种鲸鱼因为它们没有背鳍

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Any of several baleen whales of of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal fin.

几种喉部有纵向沟槽且背鳍小而尖的须鲸科长须鲸。

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A goldfish LanChou belongs to the egg, dorsal fin.

兰畴属于蛋种金鱼, 无背鳍.

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The dorsal fin is the vertical fin on the back of a fish and certain marine mammals.

背鳍就是在鱼或者某些海洋哺乳动物背上的垂直鳍。

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