N-UNCOUNT (爲使某一黨獲得優勢)不公正的改劃選區Gerrymandering is the act of altering political boundaries in order to give an unfair advantage to one political party or group of people. (爲使某一黨獲得優勢)不公正的改劃選區 [disapproval]
With the help of skilful gerrymandering, the Party has never lost an election since.