Here's the problem. How do I get to the nth- er, the k'th element in the list, in this case?

如何找到第n个元素呢-,在这里，如何找到第k个元素呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

Finally, they got Harry Hamlin to do it, who was kind of a B-list sort of guy.

最后他们找了Harry，Hamlin来演，他是一个二线演员。

耶鲁公开课 - 心理学导论课程节选