1. Can't be my grades, my grades are amazing.

不可能是因为成绩 我成绩那么好

2. No. I realized that the eighth grade boys like the ninth grade girls, so I started dressing up like a ninth grade girl.

不 我发现八年级的男生 喜欢九年级的女生 所以我开始打扮成九年级的女生

3. In the fourth grade, I was reading at a seventh grade level.

四年级时 我就能读懂七年级的书

4. I won the 7th grade reading challenge in 6th grade.

在六年级就赢下了七年级的阅读大赛

5. I won the 8th grade science fair in 7th grade.

我在七年级就赢下了八年级的科学展览会

6. I mean, we were in the same grade, but we didn't really become close until eighth grade.

虽然我们是同级 但到了八年级我们才真正亲密起来

7. Grade II astrocytoma, which as it turns out is a good grade, so I'm proud of the little guy.

星形细胞瘤二期 是一个不错的阶段 所以我为我的小家伙自豪

8. All grades are final, so please, don't come to see me expecting to negotiate a higher grade.

所有分数都是最终成绩 所以请不要指望来找我 要求改判加分

9. And he really likes eighth grade girls, so I thought that if I looked and acted like an eighth grade girl, he'd ask me to the dance.

他很喜欢八年级的女生 所以我想着如果扮成一个八年级的女生 他就会邀请我去舞会

10. I'd have been all over that in ninth grade.

九年级时的我一定会被迷死的

以上参考资料就是本英汉词典详细汇总的单词grade的翻译英语含义，如有错漏请向我们提供反馈意见。