There is no statistically class difference in the fear of negative evaluation, communication apprehension, test anxiety, the other anxiety and total anxiety.

在负评价焦虑、交流焦虑、考试焦虑、其他焦虑和总焦虑上无显著的班级差异。

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The difference between Class E and A airspace is that in Class A, all operations are IFR, and pilots must be instrument-rated, that is, skilled and licensed in aircraft instrumentation.

E 级和 A 级空域的区别在于，在 A 级空域，所有操作都需遵照仪表飞行规则，飞行员必须要有仪表等级，也就是说，要有操作航空仪表方面的技术和执照。

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And I think that every little bit makes a huge difference." While his class wrapped up, students for the next computer class, to be taught in Spanish,filed in, reflecting the diversity of this community, as well as its shared needs.

VOA: standard.2010.02.24

First of all, as I said, this class is a class about making a difference in people's lives.

首先，正如我刚才说的，这门课是关于如何改变生活。

哈佛公开课 - 幸福课课程节选

So if you really want class to make a difference in your life, it's up to you.

所以如果你真的想通过这门课改变生活，一切取决于你。

哈佛公开课 - 幸福课课程节选

Middle-class shoppers split the difference, discreetly downloading entire catalogs of Bollywood hits to their phones from local shop owners.

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But while the Australians were making history, Namibia bowler Rudi van Vuuren was demonstrating the difference in class between the two sides.

BBC: McGrath storms into history books

Although the rich may not notice the difference, the middle-class and poor pay the price.

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