Please give me a reference price.

请给我一个参考价。

Please give us a reference price.

请报出参考价格。

This reference price is out of our reach.

这个参考价我们无法接受。

Is the reference price offered by you the final one?

您给的参考价，是否最后的价格？

What's the unit price? Please give us a reference price.

单价是多少？请报出参考价格。