“书信的”用英语怎么说？

按书信的要求写出今天的日期.Write today's date in the It'should appear on a letter.据传, 七信沟是邓艾传递书信的营寨.According to legend, seven - letter correspondence delivery channel is they ing zhai DENG Ai.按照书信的要求,在一封寄给国外朋友的信上写上你自己的家庭住址...