1、
Fernandez studied the socioeconomic backgrounds of new recruits.
费尔南德斯研究了新成员的社会经济背景。
《柯林斯高阶英汉双解学习词典》
2、
In males, however, there was no apparent social pattern of burnout across socioeconomic categories.
然而在男性受雇者中, 疲劳指数并没有清楚的社会阶层分布.
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