年级组的英文：
classroom group

classroom是什么意思：
n. 教室

They catapulted into the classroom.
他们飞快地跑进教室。

There is not a student in the classroom.
教室里一个学生也没有。

Eric pattered over to the classroom.
埃里克嗒嗒地朝教室走去。

Lecture Theatre; Terrace Classroom
阶梯教室

They ransacked the whole classroom for their basketball.
他们翻遍了整个教室寻找他们的篮球。

group是什么意思：
n. 组；团体；集团
v. 使聚集；将…分类，把…分组

grouping of data
资料归类

They are a group of wakes.
他们是一群守夜的人。

This group could be subdivided into two small groups.
这个组可以分成两个小组。

These translators are known as
这些译者就是传说中的“字幕组”。

The whole group will be rooting for him.
全队的人都为他打气喝彩。