Basic explanation:

1. A large class of vertebrates, living in water, whose body temperature changes with the external temperature. Generally, their bodies are flat, with scales and fins, and they breathe through their gills. There are many kinds, including cartilaginous fish and bony fish. Most of them are edible.

2.(Yú) Last name.

Related words

Fish, shrimp, hairtail, small fish, flying fish?

Fish fillets, fishing nets, turtles and goldfish.

Extended data

Interpretation and sentence-making of related words

First of all, barracuda

Sentence: What really catches the eye is all kinds of fish. Living in a log cabin is like sitting in a goldfish bowl. You can see angelfish, parrotfish, barracuda and snapper peeping at you through the window. ?

Description: Fish has a slender body, a short and wide head and large scales. The back is blue-gray and the abdomen is light gray, and there are black vertical stripes on both sides of the scales. Living in coastal areas, rivers or places where salt and fresh water meet, eating organic matter in underwater soil. ?

Second, fish meal

Sentence: Choose beef, chicken, eggs, meat powder, fish meal, soybean, yeast, rice, corn, wheat flour, vegetable oil, animal fat, fresh vegetable juice, dietary fiber, vitamins and minerals, and antioxidants. ?

Explanation: the head, tail and internal organs of fish or fish. It is made by cooking, squeezing, crushing and other processes. It is rich in protein and is a good feed. ?

Third, snakehead

Sentence: This huge snakehead is a carnivorous fish, and it can enjoy almost anything it passes through, which leads to various disasters in the area it enters. ?

Description: The general term for snakehead. ?

Fourth, flying fish

Sentence: The experiment of Bai Haitian also found that flying fish can glide farther when they are only 4-5 cm away from the water surface. ?

Description: Fish, with a long cylindrical body and developed pectoral fins, can jump out of the water and glide in the air like wings. ?

Five, ichthyosaurs

Sentence: ichthyosaur's head is one meter long, and its teeth are short and sharp, which can make it tear up large reptiles, but its favorite is fish and cephalopods, such as ammonites. ?

Description: An ancient reptile that lived in Mesozoic era looks like a fish with flippers on its limbs. Living in water.