求翻译：根据奥巴马及教育部部长邓肯的改革理念，教师成为改革的中心。他们认为，目前美国教师的评估过于僵化，老师们基本上是论资排辈，报酬和教学质量未能挂钩是什么意思？

According to Obama and the Minister of Education, Duncan's reform ideas, the teachers become the center of reform. They believe that the current assessment of U.S. teacher is too rigid, teachers are basically based on seniority, pay, and not linked to the quality of teaching

under Obama and Education Minister Duncan reform concepts, teachers could become the center for reform. They are of the view that, at present, the United States was too rigid and teachers' assessment of teachers is essentially based on seniority and quality of teaching has not been able to link to r

According to the Austria Pama and the Ministry of Education Minister Duncan's reform idea, the teacher becomes the reform the center.They believed that, at present the American teacher's appraisal too ossifies, teachers basically are the observance of senority, the reward and the quality of teaching

Under Obama and the Minister of education, Duncan's reform concept, teachers in the center of reform. In their view, current United States teacher assessment too rigid, teachers are essentially seniority, remuneration and teaching quality failed to hook

According to Obama and the Minister of Education, Duncan's reform ideas, the teachers become the center of reform. They believe that the current assessment of U.S. teacher is too rigid, teachers are basically based on seniority, pay, and not linked to the quality of teaching