He tested the free-diving self-propelled submersible - one of only two in existence at the time - on increasingly deep dives off the California coast.

VOA: standard.2010.06.21

- So this is where recursion gets a little trippy-- certainly initially, and that you have to kind of keep diving deeper, deeper, deeper into the problem.

在这儿就会觉得递归有点迷糊了-,起初，你必须一层一层地,深入到问题中。

哈佛公开课 - 计算机科学课程节选

- So this is where recursion gets a little trippy-- certainly initially, and that you have to kind of keep diving deeper, deeper, deeper into the problem.

在这儿就会觉得递归有点迷糊了-,起初，你必须一层一层地,深入到问题中。

哈佛公开课 - 计算机科学课程节选