写信有用 我爸还夸我了一下 说写信很好 移民官很认真的看了 我当时还在学校 用的有学校名字的信纸 让父母穿的时髦 土豪一点 要说主要是旅游购物 顺便看女儿

Dearofficer：My name is x'x'x. I am currently a full time student at The University xxxxx. I would like to invite my parents to visit me in United States for 3 months. Since my parents don’t speak English, I would like write a little bit about their travel plan.
My parents will go back to China right after their short visit becausexxxx 。They bought their round trip airline tickets.
They just visited Japan and had a wonderful time. My father just retired from a university. My mother is a retired pharmacist. My parents have been great support for me. However, I have not been able to see them recently. Since they plan to visit other courtiers after retirement, I feel it’s a good time to invite them for a visit in USA.
During my parents visit, their major plans include celebrating New Year with me in New York, visiting some east coast cities in weekend such as Washington DC. They are able to cover all their living and traveling expenses in the United States.
Thank you very much for your favorable consideration of their applications. With our sincere hearts, we hope that you would approve their applications. Please contact me via phone xxxxy.edu if you have any questions.
Sincerely，