求翻译：很遗憾你们不能接受我司的保函，正如你们知道的，我司花了近6个月的时间来和银行磋商保函的问题， 过程非常的艰难，现在终于取得了进展。但贵司现在提出PNI要修改保函的条款（我司并没有收到贵司2011年8月31日的邮件），我们也作了努力和银行协商，争取按你们的要求重新准备保函，但银行已经终结了这个CASE, 不可能做修改。所以请贵司接受已经签署的保函是什么意思？

I am sorry you can not accept the Secretary's guarantee, as you know, our company spent nearly six months to discuss bond issues and bank, the process is very difficult, and now finally made progress. PNI, but your company now propose to amend the terms of guarantee (I have not received the Secretar

It is regrettable that you cannot accept the letter of my Division, and as you know, I am Secretary spent nearly six months to consultations and bank letters of guarantee, the process is quite difficult, and is now finally made progress. However, the Secretary has now raised PNI to modify the terms

Very regrettable you cannot accept the letter of guarantee which I take charge of, just like you know, my Si Hua the near 6 month-long time has come and the bank consultation letter of guarantee question, the process unusual difficulty, now finally has made the progress.But the expensive department

It's a pity you can't accept our guarantee, as you know, our company has spent nearly 6 months to consultations and bank guarantee issue, process is very difficult, so now we have made progress. But your proposed PNI to modify letter of guarantee terms (Division I has not received messages of your A

It's a pity you can't accept our guarantee, as you know, our company has spent nearly 6 months to consultations and bank guarantee issue, process is very difficult, so now we have made progress. But you now present the PNI to modify the terms of the letter of guarantee (we have not received your com