People from different classes used to mix very little.
不同阶层的人过去很少交往。
There are 26 contestants to compete in this show. They come from different classes.
现在，让我来介绍一下我们的选手和比赛规则吧！
Are these people all poor, or are they from all different classes?
这些露宿者都是贫穷人吗？还是来自不同的阶层？
The standards in this class are just different from all other classes.
这门课的标准和所有其他的课都不同
The standards in this class are just different from all other classes.
这门课的标准和所有其他的课都不同
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