英语翻译这是我们第一次合作,但是由于我的不小心给您带来了麻烦,我和我们公司真诚的向您道歉.请原谅我们,今后的工作我们会更加仔细的对待,希望您能继续支持我们.

I am quite sorry for making you be in trouble in our first cooperation.our company will apologize about it.Please forgive us and we will be more cautious to deal with such things.I hope you can continue to cooperate with us.Thank you very much.
(非机翻)

This is our first cooperation.But because of my careless get you into trouble, Please accept our sincerest and deepest apologies for the error and forgive me.We will treat our work seriously and carefully in the future.We look forward to your continued support and patronage.Thank you.

This is our first cooperation, but because I accidentally brought trouble to you, I sincerely apologize to you and our company. Please forgive us, we will be more careful in future work, I hope you can continue to support us.
希望能帮到你

这是我们第一次合作，但是由于我的不小心给您带来了麻烦，我和我们公司真诚的向您道歉。请原谅我们，今后的工作我们会更加仔细的对待，希望您能继续支持我们。
This is our first cooperation, but because I accidentally brought trouble to
you, our company and I sincerely apologize to you, please forgive us, we will be
more careful in future work, I hope you can continue to support us
以上为机器翻译 结果，仅供参考
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Dear Sirs:This is the first time we cooperate with each other.On behalf of our company We send our deepest apology to you for the trouble we bring to you.Please forgive our mistake,and we will complet...