know black from white

基本解释

Disdained from the past South African white man in the black person's sight, we could know the social status at that time of black person in South Africa.
从过去的南非白人鄙视黑人的视线中，我们可以了解到南非黑人当时的社会地位。
goabroad.wenda.sogou.com
"What Klein and Roitfeld should know … is that painting white people black for the entertainment of other white people is offensive in ways that stand entirely apart from cultural context, " it said.
“克莱因和洛菲德应该知道…为了其他白人的娱乐，而将白人涂成黑色是令人厌恶的行为，这种行为完全背离了文化传统，”文章称。