了解这些主题话题会使得它更清楚，这就是为什么某些程序和算法需要花费很长的时间来去运行，和如何识别它们。
Knowing these topics makes it clearer why certain programs and algorithms will take a very long time to run, and how to spot them.
找三篇关于这个主题或其他你感兴趣的话题的期刊文章，然后进行讨论。
Find three journal articles about this or another topic that interests you and discuss them.
尽管如此，利用具有讽刺意味的评论、奇闻轶事或者短篇幽默故事，来关联主题、介绍话题和确立观点，都是一些可行的开始类型。
However, an observation of irony, or an anecdote or short humorous story that makes a relevant point or introduces the topic and sets the theme are the kinds of openings that can work.
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