Basic explanation:

"Eel", [má n]1.[~ Squid] has a slender body with a round front and a flat back. It lives in fresh water and lays eggs in the ocean. Meat is rich in fat. Also known as "white eel" and "white eel", referred to as "eel".

Make words and sentences:

1, sea eel: The decrease in the number of sea eels will lead to the decrease in the fertility of seabirds, that is to say, the number of breeding birds and some important birds will continue to decrease. Conservationists pay close attention to this.

2. Eel: Getting married is like walking into a snake's nest. You have to pray that you meet an eel.

3. Eel: The cultured eel species mainly include European eel, American eel and Japanese eel.

4. Electric eel: At present, some researchers in the United States have developed a new type of battery, which is similar to the way electric eel generates current.