idiom · two mortal enemies cannot coexist; originally referring to the historical impossibility of coexistence between Shu Han and Cao Wei

正邪漢賊不兩立，我們絕不與歹徒妥協。

abbreviation · a former Kuomintang (KMT) policy and slogan asserting that the Republic of China would not coexist or negotiate with the Chinese Communist Party

在兩岸對峙的年代，「漢賊不兩立」曾是當時政府的堅定立場。