請問 matriculated 與 post-secondary 有何分別 ??

matriculate
准許...入學;錄取...入大學

post-seconday
完成中學 (香港來講即完成中七)

matriculated particularly stands for the 2 years before entering university, which means, F.6 and F.7.
post-secondary stands for all education that can be pursued after completing F.5 education, which means, including IVE, Asso. High-Dip, etc.

You can use Yahoo ditionary