I have a key和 I have got a key这两句话都正确吗?

问题描述:

I have a key和 I have got a key这两句话都正确吗?

两者文法皆无误.
I have a key = 我有把钥匙
I have got a key = 我有一把钥匙/我得到了一把钥匙