The shark described a circle around the shoal of fish.
这条鲨鱼围绕着鱼群游动。
Mercury levels are high in marine fish, too—particularly in larger species, such as shark, tuna, and swordfish.
海洋鱼类中的汞含量也很高——尤其在体型较大的鱼类体内，如鲨鱼、金枪鱼和旗鱼。
Will a shark prefer to eat a human or a fish?
鲨鱼会喜欢吃人还是鱼？
The shark might go for the injured fish you had attacked and take a big bite of you at the same time.
鲨鱼可能会扑向你攻击过的受伤的鱼，同时咬你一口。
Go "hand-in" to touch a shark, a crab, or thousands of tiny cleaner fish that will bite playfully at your fingers.
亲手触摸鲨鱼、螃蟹，或数以千计的小清洁鱼，它们会开玩笑地咬你的手指。
In a flash the shark caught its victim, a large fish, in its powerful jaws.
刹那间，鲨鱼用它有力的下颚抓住了一条大鱼。
In a flash, the shark caught its victim, a large fish, in its powerful jaws.
刹那间，鲨鱼用它有力的下颚咬住了一条大鱼。
Can a shark choose between a plant and a fish?
鲨鱼能在植物和鱼之间选择吗？
When the shark has a choice between humans and tuna, it is the fish that attracts the shark's attention.
当鲨鱼在人类和金枪鱼之间做选择时，是鱼吸引了鲨鱼的注意。
However, many fish, such as shark, catfish, swordfish, and sea trout, contain almost one-third fat, while salmon and orange roughy contain over 50%.
然而，许多鱼类，如鲨鱼，鲶鱼，旗鱼和海鳟，含有近三分之一脂肪，而鲑鱼和橘棘鲷（红鱼）则超过50％。
Eilperin was talking about shark movies in conjunction with her new book, “Demon Fish” a wide-ranging survey of sharks and their relationship with humans.
艾尔柏林当时正谈着她的新书“恶魔鱼”，顺带提到有关鲨鱼的影片。书中涵盖了广泛的调查，有关鲨鱼以及它们与人类之间的关系。
New Zealand fur seals swim warily above a great white shark, the largest predatory fish in the seas.
新西兰的海豹警惕地在白色大鲨鱼的上面游动，大白鲨是海里最大的食肉鱼类。
He and the pilot drifted for 47 days-braving shark attacks, Japanese strafing, hunger and burning thirst, with only rainstorms and occasional fish or birds for sustenance.
他和飞行员漂流了47天——勇敢地面对鲨鱼袭击、日军扫射、饥饿和干渴，只靠暴雨和偶尔捕获的鱼和鸟维生。
The world's largest shark and largest fish.
世界上最大的鲨鱼，同时也是最大的鱼类。
Now Dogfish (the small shark) took the bag and pulled it along a good way, and finally Pike (the freshwater fish) managed to inch it along some more.
这时候角鲨鱼又把袋子向前拖了一大段距离，梭子鱼也奋力向前拖了几英寸。
But sometimes a shark breaches the surface when it feels another shark underneath it. They [move] like a flying fish and end up several metres away.
但有时当一条鲨鱼感到有另一条鲨鱼在它下面是，它会像飞鱼那样飞起来落到几米外的地方。
A school of snorkelers struggles to keep pace with a whale shark—the world’s biggest fish, which can grow more than 60 feet (18 meters) long.
虎鲨是世界上最大的鱼类，成年时他的身长可以超过60英尺（约为18米），图中一群潜泳者正在努力追上这只虎鲨。
The largest fish in the sea, the whale shark can reach lengths of 40 feet (12 meters) or more.
图为海里最大的鱼——鲸鲨，它可以长达40尺（12米）（超过也是有可能的）。
Squalene is commercially extracted from fish oil, and in particular shark liver oil. Squalene used in pharmaceutical products and vaccines is purified from this source.
市售角鲨烯提取自鱼油—尤其是鲨鱼肝油，提纯后可用于药物制品和疫苗。
Lloyd Skinner was pulled under the surf and dragged out to sea by the shark, believed to be a great white, off Fish Hoek beach in Cape Town.
在开普敦fish Hoek海滩，劳埃德·斯金纳被鲨鱼拖下水底拉入海中，据信这是一条大白鲨所为。
Other exports include pet fish, shark fins, and seaweed.
其他出口品包括宠物鱼、鱼翅和海草。
A shark is the only known fish that can blink with both eyes.
鲨鱼是唯一一种能够双眼同时眨眼的鱼类。
Don't buy products that exploit the oceans, such as coral calcium, shark cartilage supplements, and coral jewelry, and if you take fish oil, you can substitute equally healthy flaxseed oil.
不要买利用海洋的产品，如珊瑚钙、鲨鱼骨补品和珊瑚珠宝，如果你要买鱼油，可以买有同等健康价值的亚麻籽油。
The shark-like animal belongs to the mysterious and little-studied chimaeras, perhaps the oldest group of fish alive today.
这种鲨鱼状的动物属于神秘的银蛟类。 银蛟可能是现存最古老的鱼类之一，人类对它的研究少之又少。
These are the animals chosen for the mission: Lynx, Fox, Wolf, Wolverine, Mouse, Pike (a freshwater fish), and dogfish (a kind of small shark — dogfish is a funny name for a shark, isn't it?)
他们选了这些动物：猞猁，狐狸，狼，狼獾，老鼠，梭子鱼(一种淡水鱼)，角鲨鱼(一种小型鲨鱼——很有趣的名字，对吧？)
The file gives some likely reasons for the decrease. One reason is that overfishing of sharks and related fish has reduced the size of some shark populations.
这份档案给出了袭击减少的一些可能的理由。一个理由是鲨鱼和相关鱼类的过度捕杀减小了一些鲨鱼的大小。
But they should avoid shark, marlin and swordfish because these fish are particularly high in mercury and other pollutants.
但是她们要避免进食鲨鱼、马林鱼和旗鱼，因为这些鱼中汞的含量及其他污染物的含量特别高。
Due to their high methyl mercury content, limit white (albacore) tuna to 6 ounces per week and do not eat the following four types of fish: tilefish, shark, swordfish, and king mackerel.
由于一些海鲜甲基汞含量过高，白吞拿鱼每周不超过6盎司，不要食用以下4种鱼：方头鱼，鲨鱼，剑鱼和鲭鱼。
Seventy-three million sharks are killed each year for their fins (shark-fin soup is huge in Asia) or meat or just as collateral damage of the wider fish trade.
每年约有7300万条鲨鱼因为它们的鱼鳍或鱼肉招来杀身之祸(鲨鱼鱼翅汤在亚洲市场广阔)，或仅仅因为其他捕鱼活动而遭受殃及。
Seventy-three million sharks are killed each year for their fins (shark-fin soup is huge in Asia) or meat or just as collateral damage of the wider fish trade.
每年约有7300万条鲨鱼因为它们的鱼鳍或鱼肉招来杀身之祸(鲨鱼鱼翅汤在亚洲市场广阔)，或仅仅因为其他捕鱼活动而遭受殃及。
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