pen n pal笔友
pen-pal笔友
Re Pen-pal wanted主题
Arthur and the Pen-pal亚瑟和笔友
ARTHUR AND THE PEN-PAL PLAYOFF亚瑟与笔友打比赛
want a pen pal想要一个笔友
Receive pen pal letter收到笔友的来信
pen pal come from你的笔友来自于哪儿
His pen pal喜欢游泳
N-COUNT（可数名词） A pen pal is someone you write friendly letters to and receive letters from, although the two of you may never have met. 笔友