この件では秘密が何より重要なことだ。の英語

Secrecy is of the essence in this matter.

This is a secret.

This is a secret, so keep quiet about it.

Absolute secrecy is vital to the success of the scheme.

I wouldn't call it a secret.

This is confidential mind.

Let's keep this a secret.

I thought it was a secret.

The secret will soon get out.

It's difficult to keep secrets.

It's secret.

I can't tell you. It's a secret.

The secret came to light at last.

It is important for you to keep this secret.

The cat is well out of the bag.

I confide the secret to you only

It is for your private ears.

This is between ourselves.

There are barely any people who know that secret.

You may as well keep it a secret.

Mind you, this is a secret.

This is just our secret, okay?

This is a secret; keep it to yourself.

This is a secret. Keep it to yourself.

Absolute secrecy is vital to the success of the scheme.

I must keep a secret with regard to the fact.

That fact is better kept secret.

Please keep it secret.

Keep it quiet.

Don't repeat the secret.