i tried doing the accounts ,but,although i knew some maths ,i found it very difficult。

这是个选择题 ，可是我不知道怎么解释了，but和although 怎么可以同时用呢 ？在此先谢谢您的帮助了！

but相对于整个句子而言，它的内容是although i knew some maths ,i found it very difficult

although只相对于but连接的后半部分的并列句(although i knew some maths ,i found it very difficult)而言，它的内容是i knew some maths

although 是尽管的意思，作为让步。but才是句子的转折连词。 我尝试去做会计，但是，尽管我懂一些数学，我发现做会计还是很难。