我对给您带来的麻烦感到十分抱歉。
我能理解，并且为给您带来的麻烦表示道歉，但是我只能这样做。
I understand, and I regret the inconvenience, but there's nothing I can do about it.
我对于我们的失误给您带来的麻烦表示道歉，并希望我们一起合作愉快。
As for our mistakes during the work causing you unconvinence, we give our sincerely apologies here. In addition, hope we have a pleasure cooperation.
应用推荐