Groups were assigned and the students came from all over the world, so we made great efforts in the selection of the student groups that we put together.

对来自世界各地的学生,进行分组，我们花了很大力气选择,放在一起的组。

麻省理工公开课 - 媒体、教育、市场课程节选

Student: Wouldn't natural selection favor the people ? who learn all these things and then practically try to apply them?

学生：自然选择会不会垂青,学习并践行这些知识的人？

耶鲁公开课 - 心理学导论课程节选