I've been here in MIT for thirty years, and in the early nineties I taught the large freshmen physics course, and electromagnetism.
我麻省理工工作三十年了,在上世纪九十年代初,我就开始给大一新生上物理课,以及电磁学。
Yes, I have. Freshman year, I was having a lot of trouble in my Physics class, and
是的。大一那年,我在物理课上遇到了很多难题,
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