key class短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 关键字分类 But for various reasons, there exist many question need to solve for example: set up key class, select school, school arbitrary charge and disadvantaged groups, etc, still in this respect. 然而，由于种种原因，在这方面仍存在不少需要解决的诸如设置重点班、择校上学、学校乱收费以及弱势群体等问题。 fabiao