You ain't gonna stand a chance in that ring.

套上这条狗链 你就插翅难飞了。

I'd say you're averaging " Acceptable" at the moment, so you'll need to put in some good hard work before the exams to stand a chance of continuing. Then you ought to do Charms, always useful, and Potions.

我要说，你现在的平均成绩是‘及格’，所以你需要在考试前十分努力地学习，好有机会继续进修。你还应该学习魔咒学，那总是很有用处的，还有魔药学。