Students in middle and primary schools的用法和樣例：
例句
- Overweight burden of study has become the pressure on the primaryand middle school students.
過重學習負擔已成為壓迫中小學生生存的外在力量。 - Many parents find it hard to understand why so many secondary and primary school students indulge themselves in computer games.
許多家長很難理解為什麼那麼多的中小學生沉迷於電腦遊戲。
