My grades went down.

我的成绩下降了。

youdao

When he settles down to his study, he is bound to get good grades.

当他开始认真对待他的学习时，他一定可以取得好成绩。

youdao

My parents had always been so proud of my grades, and I didn't want to let them down.

我的父母一直自豪于我的成绩，我不想让他们失望。

youdao

What happened? I'm down here and try, I'm trying do get grades, which is a call to that function, which is not bound in my computer.

尝试着读取成绩，这被称为函数,是不被我的计算机局限的。

麻省理工公开课 - 计算机科学及编程导论课程节选

What's really more likely to happen is that if these bond insurers get down-graded by the rating agencies from their triple-A rating, that would cause all the holders of the bonds to also have down-grades, which would mean yet more billions of write-offs, yet more losses, yet more problems for the stock market and yet more ripple effect on the rest of the economy.

NPR: Bond Insurer Losses Could Have Broader Impact

Ms Barton puts the improvement in grades down to "hard work" and an improvement in teaching.

BBC: Schools celebrate league table success

He does, however, favour breaking down rigid job grades, which currently encourage talented civil servants to continually move to new posts to secure promotion.

ECONOMIST: Civil-service reform