大学英语词汇短语释义解析及例句 class mobility


释义：

class mobility 阶级流动，阶层流动

例句：


These students need to build skills and knowledge during college if they are to use their degrees as a stepping-stone to middle-class mobility.

如果这些学生想把学位作为进入中产阶级的垫脚石，那么他们需要在大学期间积累技能和知识。



Second of all, the authors mention class mobility, but offer no such evidence of its occurring.