I have an excellent grade average at school and am extremely hard working.

我在学校有优异的成绩，而且我学习很努力。

youdao

The assign mark of environment quality in Wulingyuan was 91 and reached a excellent grade.

影响武陵源区环境质量的指标主要是水污染、土壤污染、噪声污染。

youdao

Just like the men, I don't like to talk of my past relationships, but I would give Ricky Martin an excellent grade.

和男人一样，我不想谈我的情史，但是我会给瑞奇·马丁打个高分。

youdao

Lisa Comitino, whose daughter is in fourth grade, said she thought the school had excellent teachers who wouldn't cheat on behalf of the students.

WSJ: Cheating Claims Rock Long Island