Dear Sir，
I take the liberty to write you in the hope that you might need someone to fill in for you. I feel that I am qualified as an administrator.

I am currently a student at college, I have over a month more to complete before I graduate. My major is business administration.

I have excellent grades in all my subjects. If you wish to look at these information it will be sent to you later.

I have worked at a trading company as a secretary, but I hope to seek more responsible employment.

I am 25 years old and very honest and dependable. If you need someone with my qualifications, please let me know.

thank you very much for your kind attention.

Sincerely yours,

参考译文：

敬启者：

向阁下写信，希望填补贵公司适合的空缺，至感冒昧。我可担任行政人员工作。
我现就读大学，尚有月余毕业，主修行政管理。

我所有课程，成绩均佳。倘若阁下有意审阅，当可稍后寄上。

我曾在某贸易公司担任过秘书，希望找个有发展的工作。

我现年25岁，诚实可靠，若阁下需要这种条件者，请惠函赐知。

承蒙阁下惠赐厚意，至为感激。

            xx启