固定观念

例句：

1. 1. The teacher's insistence on traditional teaching methods has created a fixed concept in the students' minds.
   老师坚持传统的教学方法，在学生心中形成了一种固定的观念。
2. 2. The researcher found that many people still have a fixed concept about the benefits of exercise.
   研究者发现，很多人对运动的好处持有一种固定的观念。
3. 3. To break free from this fixed concept, we need to challenge our assumptions and embrace new ideas.
   要打破这种固定观念，我们需要挑战我们的假设，拥抱新的想法。