I would like to have a post box.

我想开一个邮政信箱。

youdao

Will you post this letter for me if you are passing a post-box?

如果你路过邮箱的话，愿意帮我寄这封信吗？

youdao

Will you post this letter for me if you are passing a post-box?

如果你路过邮箱的话，愿意帮我寄这封信吗？

youdao