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(guò)重學(xué)習負擔已成為壓迫中小學(xué)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(cháng)很難理解為什么那么多的中小學(xué)生沉迷于電腦游戲。
