"年级"这个词用英语怎么说?

grade
例：一年级 Grade one

年级:
1.[England] form
2.[America] grade
3.year

Examples:
1. 他读三年级。
He is in the third grade.
2. 助学金通常在大学一年级之后逐渐减少。
Financial aids generally taper off after the first year of college.
3. 我儿子上小学三年级.
My son's in the third grade.
4. 我们得设计出三年级的新课程.
We shall have to design a new curriculum for the third year.
5. 最小的儿童上一年级, 最大的上六年级.
The youngest children are in the first form, the oldest in the sixth form.

Grade

grade

grade
如:grade1、grade2

这么简单也要问 汗