He told me that he had been teaching physics for more than twenty years.
他告诉我他教物理课已经二十多年了。
I have been teaching physics in a college.
我一直在大学里教物理。
Why do you want to break away from teaching physics?
你为什么不想教物理了呢？
The second part is the theory of black box in high school teaching physics.
第二部分为黑箱在中学物理教学中的理论基础。
I have been teaching Physics at a college.
我在一个学院里教物理。
I have been teaching Physics at a college.
我在一个学院里教物理。
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