adj.上流社会的,中学(或高等学校)三年级的,四年级的;
例句:
This part of town is the upper class live.
镇上这个地区是“上层”“阶级”的人住的.
It was an upper-class arrogance.
那是一种上层阶级的傲慢无礼.
Fairhope is swifty becoming a retirement town for middle and upper class.
并且正逐步的成为中高阶层的养老镇了.