请英语高手帮我翻译一段外贸邮件,谢谢(汉译英)

We can not accept your proposal, because if the total contract value 10,000 dollars. In China, we will be more concessions and we have the concessions included in the price. If by 8000 dollars signing of a contract, We will not accept this price. I think you should understand.

行文可以再优化一下

We can not accept your proposal because we can get more concessions in China if the gross contract value is estimated as 10,000 US Dollars and we have caculated the consessions in it. So, we can't accept it if signing the conract by 8,000 USD. Thank you for your understanding.