父母一签过。毕业典礼邀请，顺便旅游。4月初，北京美国大使馆。P为父母； V为签证官。问题如下：

P: 签证官你好。

V: 你们好。

V: 材料，邀请信？

P: 递进。

V: 儿子什么时候去美国的？

P: 200X 年。

V: 什么时候回来过？

P: 200X 年。

V: 照片？

V: 飞快翻过。

V: 几个孩子？

P: 独生子女。

V: 毕业之后有什么打算？

P: OPT。

V: 名字。

P: 核对。

通过。。。

一下是我的邀请信（Cover letter)，供新人参考：

March X, 2008United States Embassy of Beijing3 Xiu Shui Bei JieBeijing, 100600China

Dear Sir/Madam:

I am writing to confirm that I invited Dr. XXX (Father) and Dr. XXX (Mother) to participate my commencement ceremony at University of XXX in XXX 200X.

I came to the United States in August 200X to pursue my PhD in XXX at the University of XXX. My research is academic in nature and is focused on XXX, such as XXX, which are XXX. After X years research and writing, my dissertation committee approved my graduation plan in XXX 200X.

My parents have provided tremendous support to me in the past Xyears and I would like to share the joy of PhD graduation with them. Moreover, I have planned a vacation across the United States with my parents to celebrate the graduation. Their itinerary in the United States will be the following:

1. XXXXX2. X3. X4. X5. X

My parents will depart from XXX back to China. The duration of this trip would range from 3 to 6 months. In the meantime, I will be a legal F1 student in Optional Practical Training (OPT). I have monthly salary of US$ XXX for my research assistantship and I have bank deposit of over US$ XXX. My parents will bring US$ XXX for the trip and I will cover the rest expenses.

My father has served as a XXX for over 30 years and he plan to retire in two years. My mother has been a professor in XXX for over 20 years bore she retired about X years ago. Furthermore, my parents own real estate, stocks, bank savings, and have developed extensive professional and social ties in China. Both of them are persons of excellent character,financially stable, and completely trustworthy. I have enclosed the following documents to assist my parents’ visa application interview:

1. An official invitation letter to my commencement ceremony from theInternational Scholar and Student Services of University of XXX;2. Automatic payroll deposit to XXX Bank by XXX payroll in the past 12months and representative pay stubs in 2007 and 2008;3. Bank statement and online transaction history of XXX Bank, overUS$ XXX in cash;4. Photocopies of my passport, latest I-94, latest student visa, and I-20form;5. Photocopies of my social security card, medical insurance card, anddriver’s license;6. My Curriculum Vitae.

I wish they could be issued visitors’ visa for this trip. Please contact me if you need further information. Thank you for your consideration of this request.

Sincerely,

XXX

来源：未名空间（www.aoji.cn

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