This shows that the substitute teachers become a social problem and a special group of social concern.

这说明了代课教师已然成为一个社会性的问题，成为社会关注的一个特殊群体。

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Discusses the issue of substitute teachers, from lack of mining development in education, particularly in rural basic education.

论述农村代课教师问题，从中挖掘教育实践中的不足，特别是农村基础教育。

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Teachers are normally expected to act a substitute parents rather that friends.

老师们经常被期望成为家长的替代者而不是朋友。

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The costs of substitute teachers has increased by almost 75% in the past decade, a new report has found.

BBC: Huge rise in cost of substitute teachers

If you tell me I am going to test on my kids, give me some resources to have substitute teachers.

NPR: The Future of 'No Child Left Behind'

Over the past few months, students from Santa Barbara, California to Miami, Florida have played hosts to some unusual substitute teachers, as senior women scientists and engineers from the highest levels of the Obama Administration hit the road as part of the Women in STEM Speakers Bureau roundtable series.

WHITEHOUSE: STEM Women All-Stars Hit the Road