说定了

it's a deal

→ 说定
phrase Rare #22,133
it's a deal Used to confirm that an agreement is settled.
CH: 明天上午见,说定了!
EN: See you tomorrow morning. It's a deal!

说定了?

Deal?

— 红磨坊 (2001)

“说定了。”

It's a deal.

那我们就说定了

Then it's a deal.

— 泰坦尼克号 (1997)

就这么说定了

It's a deal.

— 花样年华 (2000)

咱们说定了

It's a deal.

— 办公室的故事 (1977)

那就这么说定了

Then it’s settled.

— 浪潮 (2008)