About one-third of Southern white families at one time or another had at least a toehold in slave ownership.

大约三分之一的南方白人家庭,在某一段时期至少都拥有过奴隶

耶鲁公开课 - 美国内战与重建课程节选

They own, by the way, 40,000 serfs, own 40,000 serfs, just these 200 to 300 families.

他们共拥有四万农奴,两三百个家庭就拥有四万农奴

耶鲁公开课 - 欧洲文明课程节选

The question is: The conflicts in psychosexual development always assumes that a child has a mother and a father, one of each, in a certain sort of familial structure.

他提的问题是：,弗洛伊德在描述性心理发展过程中,总是假设孩子是拥有父母的，是处于特定的家庭结构之中的。

耶鲁公开课 - 心理学导论课程节选