求英语高手帮忙翻译几句话……在线等结果！

First of all, we work for the negligence, to bring you the unpleasant, we apologize. However, you believe that this is just a coincidence. We have self-examination since the review, there will be no way for the second time. Apologize again!

请考虑如下翻译,希望帮得到. :)

First, here we'd like to apologize to you for any inconvinience caused by our carelessness. And we believe that is only an accident and will in no way happen again.
Thank you for your kindly understanding!
Apologize to you again!

(这里to you要有的，用apologize again就是要求对方道歉的祈使句了。。。)

PS:dear 火界 - 经理 四级 , 在句子的成分上请再稍做留意.

First of all, we work for the negligence, to bring you the unpleasant, we apologize. However, you believe that this is just a coincidence. We have self-examination since the review, there will be no way for the second time. Apologize again!
一顶是对的！！

First of all, it's our negligence.we are sorry for the inconvience. However, i can assure you that it is just an exception. we won't let it happen for the second time. Apologize again!

I apologize to your unpleasure by my working neglect,also I hope you can believe it is just an accident.We will self-examination and avoid next time re-happen.Apologize again.

翻译为First, be the negligence that we have worked, Here it is is not happy to bring about , we sincerely express an apology. But ask you to believe that this is only a chance. We already self-examine self examine, will never have second time. Apologize once again!