All the students from Grade Nine are having an important exam.

所有九年级的学生都有一场重要的考试。

youdao

My brother is in Class Three, Grade Nine.

我哥哥在九年级三班。

youdao

I read it in grade nine.

我在9年级的时候读过这个故事。

youdao

In eighth-grade math, nine of the 10 districts equaled or surpassed the average national improvement of seven points only Cleveland didn't.

WSJ: City Schools Gain in Reading, Math

When the first shock came in June of 1940 the nomination for the presidency of Charles A. Lindbergh, America's international aviation hero, by the Republican Convention at Philadelphia my father was thirty-nine, an insurance agent with a grade school education, earning a little under fifty dollars a week, enough for the basic bills to be paid on time but for little more.

NPR: Roth Rewrites History with a 'Plot Against America'

Still, nine of them are "high achieving, " working above grade level in some subjects.

NPR: Students Blossom in the Desert