底限

zhè shì tā kě yǐ jiē shòu de dǐ xiàn

这是他可以接受的底限。

That is as far as he wants to go.

nǐ xī wàng de xīn zī dǐ xiàn shì duō shǎo

你希望的薪资底限是多少？

What is your minimum salary requirement at this time?