1.你写的这句话本身没有多大问题.当然最好在anyway和however两边都加上引号以造成误解.
2.如果谈到你这句话的具体内容,我想两者还是不能完全换用的.
1) however=no matter how引导一个让步状语从句.
如:I can't pass the exam however hard I work hard.
此时根本不能用anyway来代替.
2) however还可以单做副词,表转折,相当于but,但是一定要用逗号和句子其他成分隔开.
如:She is pretty.However,she has a bad temper.
3) anyway做副词表示"不管怎样,无论如何,反正"时,它和however的第二种含义有相似之处,但它和句子其他成分之间不一定要用逗号隔开.
如:I dislike hime,but I shall go and see him anyway.此处就不能换用,一没有逗号,二anyway还可以和but连用,但是however此时却不可以.
anyway还有"到底; 究竟"之意,however没有.
如:How old are you anyway?
anyway还有"用任何方法、方式"之意,however没有.
如:She told me to do the job anyway I wanted.
所以两者只能说有时是可以换用的.
如:Maybe you are right.Anyway,you can't be so rude to your teacher.此处可以换用成however