1.He graduated from Warsaw School of Economics in 1972 and received a doctorate in 1976, then become professor in 1984.
科勒德克先生1972年毕业于华沙经济大学，1976年获该校博士学位，1984年任教授。
2.He retired from Nasa in 1971 to become professor of aerospace engineering at the University of Cincinnati, where he remained until 1979.
阿姆斯特朗于1971年从美国国家航空航天局退休，其后在辛辛那提大学任航空航天工程教授至1979年。
3.To become professor, you can't have just one discovery or solve just one open problem.
要成为教授，你不能只有一项发现或只解决一个问题。