要找到一个对每个学生都合适的练习很困难的翻译：To find a suitable exercise is difficult for every student 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

To find a suitable for each student to practice very difficult

To find a suitable exercise is difficult for every student

Must find one very to be all difficult to each students appropriate practice

It is necessary to find the one for each student had suitable exercises are very difficult

To find a suitable exercise is difficult for every student