412.A trend that has existed for many years is that increasing numbers of young people wish to attend college or universities.
如今，有越来越多的年轻人想上大学，这已是多年来的一个趋势。

六级词汇讲解:

A trend that has existed for many years is that...这个句型通常可以在文章引言段中开篇使用，描述某一种社会现象或事件的趋势。

句型拓展

There is a growing tendency for parent these days to stay at home to look after their children instead of returning to work earlier.
如今，有越来越多的父亲或母亲留在家里照顾孩子，而不是像以前那样早早回去工作。

It is well-known that the globalization is the tendency of the whole world, and all kinds ofinformation begin to exchange widely and fully.
众所周知，全球化是一个世界性的趋势，各种信息开始进行广泛而充分的交流。