Can you put these letters into the pillar-box for me?

你能帮我把这些信投入邮筒吗？

youdao

There is a pillar box at the street corner.

胡同拐角处有个邮筒。

《新英汉大辞典》

There is a pillar box at the street corner.

胡同拐角处有个邮筒。

《新英汉大辞典》