For example,in first grade, students should be asking and answering questions about something they read.

VOA: special.2010.03.25

The first grade corresponds to the row player, me in this case, and the second grade in each box corresponds to the column player, my pair in this case.

单元格内第一个成绩是我的成绩,每个单元格第二个成绩是,我对手的成绩

耶鲁公开课 - 博弈论课程节选

you know, from going to public, or Catholic school from first to eight grade.

你知道，从天主教学校换去公立学校，从一年级到八年级

现在的孩子好可怕 - SpeakingMax英语口语达人

You might recall from grade school sometimes you put things in parentheses so that your addition happens first, then your multiplication, otherwise multiplication would happen by default first.

你们可能会想起小学时，将一些加法表达式,放在圆括号里，这样加法可以先计算，然后是乘法，否则，乘法默认先发生。

哈佛公开课 - 计算机科学课程节选

Maybe somebody who knows Citizen Kane and would like to have a grade for the first 50 pages.

也许比较清楚了解的同学可以做,需要先读前50页的内容。

麻省理工公开课 - 电影哲学课程节选

When I was growing up, I went to Catholic school first through eighth grade.

我成长的时候，我上天主教学校一直到八年级，

现在的孩子好可怕 - SpeakingMax英语口语达人