So within a couple of generations people could move up from being the lowest slaves to two generations of being free Roman citizens.

所以几代以内,奴隶能从最低社会等级,上升两位，成为自由的罗马公民。

耶鲁公开课 - 新约课程节选

But since life expectancy in the Ancient World was much less than ours, you didn't have usually several generations in these households, because older people just died.

但是古代人的寿命没我们长，一般不会出现几代同堂，因为年纪大了去世了。

耶鲁公开课 - 新约课程节选

There's historical scholarship that used to argue that a couple of generations ago, but not anymore.

几代以前有些历史学者曾经持这种观点,但现在没有了

耶鲁公开课 - 美国内战与重建课程节选

So the brothers, having proven their new integrity Joseph weeps, he reveals his identity in a very moving scene, and ultimately the family is relocated to, and reunited in Egypt, where they live peacefully and prosperously for some generations.

这些兄弟们证明了他们新的正直,约瑟夫轻泣，他在非常动人的一幕中表明身份，最终，全家人都迁移并重聚在埃及，他们几代人都在那里平安繁盛地生活。

耶鲁公开课 - 旧约导论课程节选

No change across generations.

几代人之间没有变化。

哈佛公开课 - 幸福课课程节选