B2 informal croc, uk/krɒk/ us/krɑːk/ a large reptile with a hard skin that lives in and near rivers and lakes in hot, wet parts of the world. It is like an alligator, but it usually has a longer and narrower nose鳄鱼
More examples
Humans, dogs, elephants and dolphins are all mammals, but birds, fish and crocodiles are not.
On average, two crocodiles a year end up as road kill on Florida's Highway 1.
He lost an arm to a crocodile.
UK informal a line of people, especially children, who are walking in pairs两人一排成纵队行走的人(尤指儿童)
See also: krokodil
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