the UN
noun [ + sing/pl verb ] uk/ˌjuːˈen/ us/ˌjuːˈen/
联合国(the United Nationas的缩写)
abbreviation for the United Nations: an international organization that was established in 1945 and aims to solve world problems in a peaceful way
The UN has decided to impose sanctions. 联合国已决定实施制裁。