class price

例句：

1. 1. The school has a policy of charging students based on their class price.
   学校根据学生的班级价格收费。
2. 2. The teacher explained the concept of class price in detail.
   老师详细解释了班级价格的概念。
3. 3. The class price is higher than the textbook cost, so we need to consider extra expenses.
   班级价格高于教科书成本，所以我们需要考虑额外的费用。