school retardation

• 留级

school retardation的用法和样例：

例句

1. Furthermore, Marlee may have a policy that students never have to repeat a school year, regardless of their marks, while Sanlee may be stricter in this regard.
   此外，马里区可能有一项政策，即不管学生成绩如何，都不必留级重读，而三里区在这方面可能较为严格。