a two-party system两党制
the Two-Party System两党制
The American Two-party System美国的两党制
“Toward a More Responsible Two-Party System:A Report of the Committee on Political”finished his thought of responsible party government.
谢茨施耐德的《政党政府》和《走向更负责任的两党制》是系统研究政党政府以及如何构建责任政党政府的重要著作。
参考来源 - 谢茨施耐德政党思想探析N（名词） a condition or system in which two major parties dominate a political unit 两党制度