请问：more and more of the substance.这里的more and more 是什么词性?

请问：more and more of the substance.这里的more and more 是什么词性? With the help of high technology,more and more new substance more and more与the more the more的区别 more 这里是什么词性? grew more and more与more and more的区别 more and more的用法 more and more quickly sb more and more More And More 歌词 more and more I more and more lightly more and more beautiful