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用英语描述鲨鱼

鲨鱼,被一些人认为是海洋中最凶猛的鱼类之一.但鲨鱼中体型最大的鲸鲨却以小型海洋生物为食物,和须鲸差不多.由于食物具有某种相似性,经过漫长的生物演化,它们长得和须鲸很有相似点,这个叫做“趋同进化”.于是“鲸鲨”的名字

字典给的:shark:any of numerous chiefly marine carnivorous fishes of the class chondrichthyes (subclass elasmobranchii), which are sometimes large and voracious and have a streamlined, torpedolike body, five to seven gill openings on each side

1. my school is much more beautiful than yours.2. i think english is much more interesting than maths.3. sharks are the most dangerous animals.4. his illness is even worse.

Sharks are a type of fish.There are hundreds of kinds of sharks. Most are about two meters long. The dogfish shark, however, is less than twenty centimeters in length. The biggest whale shark can grow to twenty meters in length. Sharks do not have

字典给的:Shark:Any of numerous chiefly marine carnivorous fishes of the class Chondrichthyes (subclass Elasmobranchii), which are sometimes large and voracious and have a streamlined, torpedolike body, five to seven gill openings on each

The whale shark, Rhincodon typus, is a slow-moving filter feeding shark, the largest living fish species. The largest confirmed individual was 12.65 metres (41.50 ft) in length. The heaviest weighed more than 36 tonnes (79,000 lb),[2] but unconfirmed

there are many kinds of animals in the world,but not only the humans.we live in the same world,and we should be friends.as everybody knows,the humans are the rulers of the world today,so we should protect our friends--the animals!but how to

Sharks (superorder Selachimorpha) are a type of fish with a full cartilaginous skeleton and a highly streamlined body. They respire with the use of five to seven gill slits. Sharks have a covering of dermal denticles that protect their skin from damage

sharks are cylindrical in shape with tapered edges. This streamlined structure allows these carnivorous hunters to cut through the water in pursuit of their prey. Most sharks average a length of about 5.8 to 7 metres, much the same as human beings.

When did this old story come from? When did it happen? Whether could be explained as a real one or just a legend? Who knows. Sadness blooming, the old captain sat along the shore, his feet touching the chill seawater, however it can't match the

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