Being the supplement and extention of the libraries, reference rooms play an important role in serving teachers and students.

院系资料室是图书馆的补充和延伸，以自己特有的馆藏文献为本系的师生服务。

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Of 413 candidates, including 141 serving teachers, who sat the benchmark test in March, two-thirds failed in the writing assessment and half in the oral part.

共有四百一十三名考生在三月应考英文基准试，其中包括一百四十一名在职教师。三分二考生写作不及格，口试不及格的亦有五成。

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The entire point of seniority-based systems like the ones that many teachers unions have negotiated is to protect long-serving teachers from losing their jobs when the budget gets tight.

FORBES: Ezra Klein on Reforming Teacher Unions

After serving their time they will not only have earned their spurs as teachers but will also be halfway through a master's degree.

ECONOMIST: Tory plans to make schools better

Both teachers and principals had to accept each other, or teachers would be on the payroll without a permanent position, often serving as long-term substitutes.

WSJ: City Moving to Strengthen Teacher Pool