学习xué xí
to learn, to study课kè
subject, course, class, lesson题tí
topic, problem for discussion成绩chéng jì
achievement, performance records数学shù xué
mathematics, mathematical专业zhuān yè
specialty, specialized field专门zhuān mén
specialist, specialized, customized博士bó shì
doctor, court academician (in feudal China)教授jiào shòu
professor, to instruct, to lecture on