read me first对吗?first后面是不是要加ly啊

没有什么不对的,first既可以放前面也可以在后面,作为副词怎么放在这里都通.还有first没有必要搞成firstly.它本身包含的词性就很广.
It could be all right to use firstly,also you can use:first of all.actually we can use many ways to say same thing.if you want I can list many as following:
firstly,you need read me,
first of all you should read me,
firstly read me,
read me first,
read me at first,
.
.
.

不加，这句话实质是first，read me
是对的