The Department offers a course in Opera Studies as a subsidiary subject.系里开了一门《歌剧研究》作为辅修课。If you take the English literature course, you can do linguistics as a subsidiary subject.你如果主修英国文学，就可以辅修语言学。If you don't pass in your subsidiary subject you can't get a degree.如果你辅修课不及格，就不能得到学位。