I add some contents which tell why he want to be hired in this firm and what he know about this firm. I think this is very appropriate to add in 2 cover letter.

 When I was freshmen, I heard this firm to my friend and started o investigate the firm. Therefore, I have known well about  the firm. Having the purpose whic I have to work this firm, I have raised my ability to adopt. Above all I have a ABC certification which this company need to, so I am very apropriate to work there. What fundamental reasons which i want to be hired this only one law firm are two. At first, I have respected a lawyer who work in womenlaw part of this firm, her cases is most impressive cases in my life, also I was impressed by him. He became my role model. Second reason is I like the way to manage this company. Innovated method and unexeptional cases made me want to this firm.