The gold standard study by Harvard and Columbia University scholars found that even in high-poverty schools, teachers consistently had a huge positive or negative impact.

哈佛大学和哥伦比亚大学的学者们进行的“黄金标准”研究发现，即便是在极度贫困的学校，教师也始终会产生巨大的，或积极或消极的影响。

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Since that's the main standard for the teachers to choose qualified students to participate in the competition on behalf of the university.

因为这是老师选拔合格学生代表自己的大学参加竞赛的主要标准。

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We at the university and post-graduate stage, a London native teachers as a standard, there is the Scottish accent English teacher.

我们在大学和研究生阶段，老师是以英国伦敦口语为标准，还有苏格兰口音的英语老师。

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