third class

　　三等;三级;三等舱

　　middle class

　　中产阶级

　　economy class

　　(飞机上的)经济舱位

　　business class

　　商务舱

　　be in a class of your own

　　无与伦比

　　to be the best at a particular activity=anything else of his/its kind

　　As a cook, my wife is in a class of her own.

　　在烹调方面，我妻子是没人比得上的。

　　be in a class by itself/of its own

　　独一无二

　　to be something of such a high quality that nothing can be compared to it=better than everyone; unequalled

　　Her mother's cakes are in a class by themselves.

　　她母亲做的蛋糕称得上是别具一格。

　　be out of your class

　　远远胜过

　　to be much better at doing something than you

　　I can't play chess with him. He's completely out of my class!

　　我不要和他下棋。他比我强太多了!

　　3、表示“阶级，社会阶级，社会等级”：

　　the classes

　　上层社会

　　the upper classes

　　上层阶级

　　working class

　　工人阶级;劳动阶级

　　social class

　　社会地位;社会阶级

　　ruling class

　　统治阶级

　　class struggle

　　阶级斗争

　　4、表示“种类，类别;门类”：

　　class A/B/C drug

　　(英国)A/B/C类毒品

　　class A drug

　　N (in Britain) any of the most dangerous group of controlled drugs, including heroin, cocaine, and MDMA

　　(英国)A类毒品;包括海洛因、可卡因、摇头丸等毒品 [法律]

　　Praise is a Class A drug and we crave more and get upset when we don’t get any in sufficiently pure form.

　　称赞就像一种A类毒品，我们渴望“吸食”更多，但如果“纯度”不够，便会感到沮丧。

　　class B drug

　　N (in Britain) any of the second most dangerous group of controlled drugs, including amphetamine

　　(英国)B类毒品;包括安非他命等 [法律]

　　class C drug

　　N (in Britain) any of the least dangerous group of controlled drugs, including temazepam and cannabis

　　(英国)C类毒品;包括羟基安定及大麻等 [法律]

　　5、表示“品位”：

　　have class

　　有品位

　　If you say that someone or something has class, you mean that they are elegant and sophisticated.

　　The most elegant woman I've ever met – she had class in every sense of the word.

　　我曾见过的最高雅的女人——从各种意义上讲她都有品位。