I understand why you're upset, sir.

先生，我明白您为什么恼火。
I understand why you're upset, sir.
先生，我明白您为什么恼火。
Well then, do something about it!
那好，想想办法吧！
I am very sorry, sir. But，at the moment, there is really nothing I can do. As soon as my supervisor comes in，I will contact you.
非常抱歉，先生。可这会儿我的确无能为力。我的上级一来， 我立刻就跟您联系。
I'm sorry to give you so much trouble.
抱歉给您添了这么多麻烦。
I realize that we've started off badly, but I think you'll be pleased with the refinished work.
我知道我们开头开得不好,但我想我们的返工结果会使您满意的。
I expected a better standard.
我原以为水平会比这高。
I realize that we've started off badly, but I think you'll be pleased with the refinished work.
我知道我们开头开得不好，但我想我们的返工结果会使您满意的。
I am very sorry you feel that way.
非常遗憾您这么想。
I think you'll be satisfied with the quality of these designs.
我想您一定会对这些设计的质量感到满意的。
I hope that answers your questions.
我希望这能回答您的问题。
I really appreciate your assistance.
非常感谢您的协助。