Gentlemen,
敬启者:

Because I believe that my sales background fits me for the position you advertised in Thursday's newspaper, I ask that you consider my qualification.
就以我过去的推销背景而言,本人自信可以胜任贵公司星期四在XX报招聘的职务,敬请给予考虑。

I was graduated from Beijing Commercial College in July 1993. My experience has included two year as salesman in the Men's Clothing Department for DangDai; and three years in the Men's Shop for ShiDu, where I am still employed.
我于1993年从北京商学院毕业,曾在当代公司男装部担任 推销员两年,后在世都百货公司男装店三年,目前仍在此工作。

My reason for wishing to make a change at this time is that there seems no opportunity for advancement in my present position, and I feel that my ability and training, as well as my interest in my work, should lead to advancement and a higher salary.
之所以离职,是因目前似无晋升机会,就我的工作能力和所受训练及我对工作的热情,我认为我应该获得晋升和较高待遇。

I am happy to refer you upon your request people who can tell you of my work and my character.
我乐于奉告阁下,如阁下要求提供查询人,以便了解我的工作情况和性格,我可以满足阁下要求。

Truly yours,
XX启