class　　

1. [C]班，班級　　

She was in a class of thirty students. 她在一個有30個學生的班里。　　

The class has elected its leader. 這個班已選出了班長。　　

2. [C,U]課　　

We take classes in chemistry every three days. 我們每隔兩天就上化學課。　　

Students copy down what teachers say and write in class. 學生們把老師在課堂上說的和寫的記錄下來。(不可數用法)　　

3. [C]類別　　

A motorcycle belongs to a different class of vehicle from cars and trucks. 摩托車屬于和小汽車、大卡車不同的車類。　　

4. [C]等級　　

There used to be first-class, second-class, and third-class carriages on the trains in Great Britain. 以前，英國火車分為頭等、二等、三等車廂。　　

5.[ C,U]階級　　

There are four social classes in the USA, the upper class, middle class, working class, and lower class. 美國有4個階級，上層階級、中產階級、工人階級和下層階級。　　

People are still very conscious of class in British society. 在英國社會人們的階級意識仍然很強。(不可數用法)