Firstly, in recent years, there are more and more college students drop out from school due to psychological problems.

首先，近几年，越来越多的大学生由于心理问题而辍学。

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The instrumental variable in this instance allows a clear, credible estimate of the return from extra schooling for those most inclined to drop out from school early.

在这一研究中，对于那些倾向于尽早离开学校的人而言，使用辅助变量法就能够得出清晰可信的结果。

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Huang2 Rong2 can not stand, yell "I want to drop out from school me and drop out from school" in the bedroom, then the Sa pulled slippers to with disheveled hair run the school east for live area.

黄蓉受不了，在寝室里大喊“我要退学我要退学”，然后趿拉着拖鞋披头散发地就跑出了所住的学校东区。

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Today, students from low-income families are five times as likely to drop out of school as students from high-income families, according to data from the Department of Education.

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