现复你方…月…日关于…的来信。

We wish to refer to your letter of... concerning.

youdao

现复你方…月…日关于…的来信鹪。

We wish to refer to your letter of... concerning.

youdao

兹复你方…月…日来信，我方愿通知你方。

Reverting to your letter of... we wish to say (to inform you) that...

youdao

兹复你方…月…日来信，我方愿通知你方。

Reverting to your letter of... we wish to say (to inform you) that...

youdao