penfriends
美
英 
例句
I would like to have penfriends from all over the world!
我希望能交到來時世界各地的筆友!
Hi! Your name and address are in "Penfriends" magzine. I would like to be your pen friend.
你好,我從“筆友”雜志上獲取你的名字和地址,我想成為你的筆友!
He is writing a letter to his penfriends
他正在給他的筆友寫一封信