And we learn about the maternal grandparents, the paternal grandparents, and the brothers and sisters, aunts and uncles, and what each one of them did.

我们学习了外祖父母，祖父母，兄弟姐妹，叔舅姨姑，还有他们曾做过什么。

麻省理工公开课 - 媒体、教育、市场课程节选