I 'm sorry that it took me a long time to think about how to write to you, but I really didn't know where to start.

我很抱歉，我用了很长的时间在想该怎样给你写信，可是我真的不知从何开始。

youdao

I 'm sorry that it took me a long time to think about how to write to you, but I really didn't know where to start.

我很抱歉，我用了很长的时间在想该怎样给你写信，可是我真的不知从何开始。

youdao