套词结果求分析！！18fall Ph.D

给一个AP发套词信，教授回复如下：
Thanks for your interests! I have multiple openings for PhD students. You can apply for spring or fall admission.
Please send me a research statement to summarize your key research achievement, and some relevant papers you published.

这个research statement的意思是总结写我现有的研究经历，发邮件是附件给发表的文章。用不用提到教授现在的研究呢？写多少字好呢？
谢谢大家啦！