中英释义：
我们就到立冬之前。一言为定。
Just till winter. Just till winter.
《奇幻森林》《The Jungle Book》
一言为定了? 这次谈话根本没的商量。一言为定? 一言为定。
Deal? This conversation is feeling very one-sided. Deal? Deal.
《驯龙高手》《How to Train Your Dragon》
你们也想去吗？真的还假的？一言为定。
Yeah well, do you guys wanna come too? Are you serious? We are there.
《老友记 第六季》《Friends Season 6》
真有才。我叫你你才能去我房间，知道了么？莱丽？一言为定。
It's magnificent. No going to my room until I tell you, okay, Riley? Deal.
《女孩成长记 第一季》《Girl Meets World Season 1》
我会回来取这个的。你保证吗？一言为定。
I'll come back for that. Promise? Promise.
《速度与激情7》《Fast & Furious 7》
那是每周末和隔周周二。好，一言为定，在下菲利浦。安妮。安妮，好名字。
Oh, that's every weekend and every second Tuesday. Okay, deal. My name is Philippe. Annie. Annie, it's a nice name.
《云中行走》《The Walk》
好吧，除非你肯戴着犹太小帽礼拜天来我家吃晚餐。一言为定。
Okay, but only if you come to Sunday dinner at my house wearing a yarmulke. It's a date.
《生活大爆炸 第三季》《The Big Bang Theory Season 3》
好吧，我们俩立个君子协定，谁都不许跟米西.戈尔伯格约会。一言为定。
All right, I say we make a pact. Neither of us will go out with Missy Goldberg. You got it.
《老友记 第十季》《Friends Season 10》
我们周末去爬山，一言为定。
We will go hiking this weekend, it's a deal.
我们明天一起去看电影，一言为定。
We will go to the movies tomorrow, it's a deal.
我们一起完成这个项目，一言为定。
We will finish this project together, it's a deal.
你借我书，我下周还你，一言为定。
You lend me the book, I'll return it next week, it's a deal.
你帮我搬家，我请你吃饭，一言为定。
You help me move, I'll treat you to dinner, it's a deal.
教练用尊敬的目光看着他，递给他一根球棒，说道：“好吧，一言为定。”
The coach looked at him with respect, handed him a bat, and said, Okay, it's a deal.
拉结: 吉儿,一言为定.
Rachel : A deal is a deal, Jill.
好，我们一言为定，明天就签合同。
All right. That is settled then. We will sign the contract tomorrow.
[谚]买卖一言为定;达成的协议不可撕毁.
A bargain is a bargain.
阿美: 一言为定，你没有开玩笑，是吧？
May: That's great! You are not kidding, are you?
-
一言为定
it's a deal; a promise is a promise; a word is a bond; count it as settled; that's settled then