一串钥匙在哪里用英文怎么说

A bunch of keys is commonly referred to as a "keychain" in Engpsh. The term comes from the concept of connecting multiple keys together on a small chain or ring, making it easy to keep track of them and keep them organized.

Some example sentences using "keychain" in a sentence:

I always keep my keys on a keychain so I don't lose them. (我总是把钥匙挂在钥匙链上，这样我就不会把它们弄丢了。)
She bought a new keychain to decorate her keys. (她买了一个新的钥匙链来装饰她的钥匙。)
He gave me a keychain with a key to his house on it. (他给了我一个钥匙链，上面有他房子的钥匙。)