英 [ˌʌpə ˈkrʌst]
最高的社会阶层或群体，尤指上层社会的最高圈子
upper crust //
单数型集体名词 The upper crust are the upper classes. 上等阶层
...the kind of lifestyle of the privileged upper crust.
...享有特权的上等阶层的那种生活方式。
形容词 Upper crust is also an adjective. 上等阶层的
Sergeant Parrott normally spoke with an upper-crust accent.
帕洛特中士说话时总带着上等阶层的口音。
the class occupying the highest position in the social hierarchy
同义词： upper class
上流社会-引用次数：2
上地壳
... 中产阶级middle class 高产阶级upper class 富人upper crust ...
...税额高昂令人咋舌，法规公文也繁琐不堪，如今印度的葡萄酒文化已经相当繁荣——或者说至少大批的中产阶级和上流社会(upper crust)（该国有一本流行杂志也叫做《上流社会》）对葡萄酒有狂热的爱好。
...均一性，总体上 看，由上向下亦可分为 3 层： 1、 大陆地壳 和大洋地壳 (2) 大陆地壳 ( Continental Crust ) 上地壳(Upper crust)：一般厚 10 ～ 15km ，主要 由沉积岩和变质岩组成，其中常侵入或穿插着 一些来自下部层位的花岗岩和混合岩..
... 顶层设计 CPU ; top-level design 顶层硬壳 Upper Crust 丝印顶层 Top Overlay ...
上流社会
There is oil storage in some areas of the upper crust.
地壳上层部分地区有石油储存。
Eton is a school that only the children of the upper crust can afford.
伊顿公学是一所只有上流社会的子弟才上得起的学校。
The building was originally constructed as a hotel for upper crust springs society, but has long since been converted into offices for lawyers, accountants and such.
这栋楼本是为镇上上层人士盖的旅店，但早已被用作律师、会计师之类的办公楼。
Much of this, however, may benefit only a thin upper crust of Indian society.
These are the thin upper crust of American small businesses, too few to matter in an election.
In the high Middle Ages, chess became a popular pastime for the upper crust, both men and women.