Chinese phrase
就定在〜，行吗？ jiù dìng zài 〜 xíng ma
Meaning
Shall we settle on ___?
When to use it
Suggests a specific plan and asks if it is acceptable. It is a polite way to confirm a time, place, or arrangement while leaving room for agreement.
Example dialogue
那我们就定在下周三下午三点，行吗？ nà wǒ men jiù dìng zài xià zhōu sān xià wǔ sān diǎn xíng ma
Then, shall we make it next Wednesday at 3 p.m.?
可以，没问题。 ké yǐ méi wèn tí
Sure, no problem.