EMAIL是什么格式的

格式通常为username@domain.com,其中username为用户名。可以是字母数字下划线domain为域名，例如QQ邮箱123456789@qq.com或者abc123@163.com。

《2》

基本上没有特定的“格式”吧， 通常都是这样：

Dear XXX（对方名字）：

Hello！（Hi！）（打招呼 随便怎样都行 只要是打招呼的）

XXXXXXXXXXXXXXXX,XXXXXXX,XXXXX.XXXXXXXXXXXXXXX,XXX.XXXXX?（正文）

Best Wishes（随意写 只要合情合理 用Achillesdite说到的也可以）

XXX（你的名字）

hi ,peter, we have not seen for several days ,i miss you very much. i always remember when we studied together before you went to usa. have you been used to the life there? is your study going well? and this weekend i will go to your home to play with your sisters .ok? please write back soon . have a good weekend