给你做了稍事修改。一、你应该一上来就指出你对哪个职位感兴趣,想申请。二、措词有些改动,还使用了一些英文函件的惯用语和格式。供参考。Dear Sir/Madam,I am very much interested in the Port Captain postion you have posted and would like to apply for it.Please allow me to briefly introduce myself.I graduated from Shanghai Maritime Unversity in 2002 and sarted to work on ship then. I was a Second Officer before I left to work in QRRO for half year.For the time being, I am studying the MBA program in Tongji University in Shanghai and will be awarded the Master degree in 2009. Currently all the courses have been finished and I can work as full time.For further and detailed information please refer to my resume.It will be highly appreciated if I can be granted an interview opportunity.Thank you for your time and looking forward to your early reply.