我几周前给您发过一封信，非常感谢您当时及时的回信！

I give you a few weeks ago to issue a letter, thank you very much then promptly reply!

youdao

感谢您耐心阅读完我的信件，期待您的回信。

Thanks for your patience of reading this mail. Looking forward to you reply.

youdao

感谢您四月二号的来信。因近期会议太多未能及时回信非常抱歉。

Thank you for your letter of April 2. I must apologize for taking so long in replying, a situation caused by a number of recent conferences.

youdao

感谢您四月二号的来信。因近期会议太多未能及时回信非常抱歉。

Thank you for your letter of April 2. I must apologize for taking so long in replying, a situation caused by a number of recent conferences.

youdao