那你什么价钱想买呢?....英语怎么说?

So, how much do you want to buy them?

Then what's your bottom line?
Then how much do you wnat to pay for it?

so what price can you take

what's your bottom line?
Then how much do you wnat to pay for it?

很多种说法,语气语境身份不同说法就不同, 如果是面对面 你是做促销的 并且是和老外说话 就应该相当客气礼貌, 但不用拐弯末角怕说得太直接, 老外说话都相当直接. 我在美国6年多了.
如果我是你的话 我会说how much can you afford?(在这里不要用could, 用的花意思不同,could是请求或者表可能性的时候用)

Then how much do you want to pay?