duopoly
n. 两家卖主垄断市场(的局面);双头垄断市场
复数 duopolies
例句
Their smaller rival is battling to end their duopoly.
比他们小的竞争对手正在为结束他们两家寡头集团而斗争。
《柯林斯英汉双解大词典》
A new movement is trying to break an old duopoly.
新的运动正努力打破两强格局。
This would boost voter choice and break the two-party duopoly.
这会增加选民选择的机会,并打破两党垄断的地位。