Examinations are taken after about five years of secondary education.

经过约五年的中等教育后参加考试。

Can we just backtrack a little bit and look at your primary and secondary education?

我们能否稍微回顾一下刚刚提及的你的中小学教育背景？

Secondary education is compulsory and tuition is free.

中学教育是免费的义务教育。

Secondary education comprised grades ten through twelve.

中等教育包含了十年级到十二年级。

Yet, statistics show the benefits of secondary education are clear.

然而，数据表明，中学教育的收益是明显的。