classroom的复数：classrooms

n.教室;课堂

例句：Extra classrooms were built out from the main block.

大楼边上又扩建了一些教室。

classroom：n.教室;课堂

例句：

Discipline in the classroom is very slack.

班里纪律十分松懈。

The classroom teacher must be sensitive to a child's needs

班主任必须对小学生的需求体察入微。

Students learned the practical application of the theory they had learned in the classroom

学生们学会了将课堂上学到的理论付诸实际应用