“这是个秘密”怎么翻译成英文?

问题描述:

“这是个秘密”怎么翻译成英文?

This is a secret.
It is a secret.
都可以。

It's a secret

这是个秘密
This is a secret
It's a secret
That’s a secret.

this is a secret.
it's a secret
口语上直接说secret就可以了

It's a secret.
This is a secret

It's a secret.