并列题名：Principle of genre film Principle of genre film 并列题名：Principles of genetics 并列题名：Principle of single wolf 并列题名：Principle of Journalism 并列题名：Principle of economics 并列题名：Principle of money 并列题名：Principles of geocryology 并列题名：Principle of reciprocity 并列题名：Principles of geology