But I suggest a clearer way to phrase it: "There have been two Republics of China." The Republic of China that has had direct presidential elections since 1996 and the Republic of China that was created on the mainland are two wholly different creatures.
但我覺得更清楚的說法，應該是「中華民國有兩個」，1996 年總統直選後的中華民國，和 1911 年在大陸創立的那個中華民國是截然不同的。