这个AI怎么写？

4.Each generation's culture achievements--such as those in music, art ，or literature--represent improvements on the cultural achievements of previous generations.

一点概念都没有，NN指教一下，谢谢

这是AIB4

看这里

http://forum.chasedream.com/dispbbs.asp?boardID=26&ID=255664&page=1