这是个秘密英文怎么说

"It's a secret" 这个短语来自英语的日常用语。

例句：

Can you keep a secret? It's a secret between us.
(你能保守秘密吗？这是我们之间的秘密。)
I won't tell anyone. It's a secret, remember?
(我不会告诉任何人，记住，这是个秘密？)