Two- track System的用法和樣例：
例句
- The media industry is going through restructuring of State-run, after the reform of the institutions and enterprises of coexistence of the dual system in operation.
傳媒業正經歷轉企改制的重大變革，變革后將會形成事業單位和企業單位並存的雙軌制運作。 - But with the enrollment expanse of self-expense postgraduates, the system presents some problems like all kinds of unfairness in the field of postgraduate education.
但隨著自費生招生規模的擴大，雙軌制也暴露出很多問題，在研究生教育領域表現出種種不公平的現象。
