monopoly

他们在邮政服务上拥有垄断地位。

They have a ___monopoly on the postal service.

政府旨在打破电信行业的垄断。

The government aims to break the ___monopoly in the telecommunications industry.

缺乏竞争是由于这家科技巨头在智能手机市场的垄断地位。

The lack of competition was due to the tech giant's ___monopoly in the smartphone market.