And so if you choose to elect the hacker edition of this week's problem set the challenge will be to figure out not only how to implement the game but how to implement a solver for the game.

因此，如果你选择这周的应用题目为升级版,那么你将面临的挑战,不仅是如何实现这个游戏，而且,要实现此游戏的解决方法。

哈佛公开课 - 计算机科学课程节选

That's one challenge and we'll talk about ways to think about engineering approaches to solve that problem.

该问题一直很具挑战性,我们会讲到,如何用生物医学工程的方法来解决它

耶鲁公开课 - 生物医学工程探索课程节选