如何理解工党的 Progressively introduce 3 years of free post-school education

qaz1234

http://www.labour.org.nz/education

Tertiary Education

    Progressively introduce 3 years of free post-school education, allowing access to university, polytechnic or on-job training for young New Zealanders and those who have not studied before

在工党的网站，用词是 Progressively，大家怎么理解？

而在http://news.skykiwi.com/na/weidu/2017-08-20/245818.html

教育
1.工党为学生的未来投资：任何高中毕业生能够享受3年的免费教育，不管你是当学徒还是读理工学院，或是读大学；

这英文原意与中文表述一致吗？