u·ni·lat·er·al·ism
noun/ˌjuːnɪˈlætrəlɪzəm/
/ˌjuːnɪˈlætrəlɪzəm/
[uncountable]- belief in or support of unilateral action, especially the policy of getting rid of nuclear weapons without waiting for other countries to do the same
单边主义（信仰和支持单方面行动，尤指单方面销毁核武器的政策）