“定金”和“订金”，哪个反悔了通常拿不回来？
定金 vs 订金 (both “deposit”, same sound) — which one can you usually NOT get back if you cancel?
全球翻车率（内测预估）
A都能退
dōu néng tuì · both can be returned
B订金
dìng jīn · a deposit
C都不能退
dōu bù néng tuì · neither can be returned
✓定金
dìng jīn · a deposit
定金是法律术语，反悔就没了；订金好商量。一个字，几千块。买房前先学中文。
定金 is legally binding — walk away and lose it. 订金 is a negotiable advance, usually refundable. Same pronunciation, very different receipts.