stratum medium

• 中层

stratum medium的用法和样例：

例句

1. There was a small middle stratum of semi-important officials evacuating with one family, a modicum of luggage, and a couple of trusted servants loaded on each cart.
   有一小部分中层官员和他们的家人一同撤离，带着些许家产和几个老家仆，坐在一辆架子车上。