I promise (或 I promise you)

(informal)used for emphasis, especially so as to reassure, encourage, or threaten someone

(非正式)（尤指用以加強安慰、鼓勵或威脅的口氣）我（向你）保證

oh, I'm not joking, I promise you.

哦，我不是在開玩笑，我向你保證。

on a promise

(informal)(of a person) confidently assured of something,especially of having sexual intercourse with someone

(非正式)（人）被確切保證某事的（尤指性關系）

a shop where Tom and I are on a promise with the girls serving there.

一家我和湯姆與女服務員有默契的商店。

promise (someone) the earth (或moon)

make extravagant promises to someone that are unlikely to be fulfilled

夸下海口

interactive technology titillates, promises the earth but delivers nothing.

交互式技術令人興奮，吹得響，實效少。

promises, promises

(informal)used to indicate that the speaker is sceptical about someone's stated intention to do something

(非正式)（表示說話者懷疑某人宣稱的意圖）諾言復諾言