中英文写信的主要区别在哪里

英文的是：Dear XXX,
I'm fine these days and I am getting along well with my classmates. And I have made great progress on studies.
I am writing to ask for a help. I am looking for a dictionary, but I can't buy it here. It is said that it is being sold in Beijing. Could you please buy one for me?
It's too late. I have to stop writing. I welcome you to visit here. I'm looking forward to you reply.
Best wishes.
Yours,
XXX 中文的是：敬爱的XX(或亲爱的，等）：
＿＿您好！
＿＿（正文）
此致
＿＿敬礼！
———————————————————————（学校）
———————————————————————（班级）
＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿（姓名）
＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿（日期