我的上一封信你收到了么？

Did you get my last letter?

youdao

她总是一个月写一封信给我，即使仅仅是为了责备我还没有回她的上一封信。

She always writes me once a month, if only to scold me because I haven't answered her last letter yet.

《柯林斯英汉双解大词典》

事实上，我收到了一封信，但只是一个朋友的来信。

I got a letter indeed, but it was from a friend.

youdao