我们可以使用其动词形式—刻苦攻读，意味着求知若渴。

We can use the verb form – to swot up – to mean learn more about anything.

还有校门附近那几个绿色的信箱，里面装满了父母们对他们刻苦攻读的子女们殷切的期望。

The green mailboxes were for the delivery of the post, perhaps from anxious parents wanting the latest news from their hard working sons or daughters.