matter-of-fact
adjective uk/ˌmæt.ə.rəvˈfækt/ us/ˌmæt̬.ɚ.əvˈfækt/
就事论事的;不带感情的
not showing feelings or emotion, especially in a situation when emotion would be expected
He spoke in a very matter-of-fact way about the accident. 他非常平静地谈起那次事故。