pen pal
pen pal基本解释
,笔友（等于pen friend）,同近
pen pal相关例句和用法
She: In my high school French class, there was a pen pal requirement..她 ：在高中的法语课上，要求每个人交一名笔友。
pen pal英英释义
笔友英释中释someone you make friends with by writing letters, especially someone who lives in another country and who you have never met
