Complex code may be more difficult to migrate, as it is generally more difficult to understand.

复杂的代码在移植时更加的困难，因为它通常理解起来比较困难。

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Phil Wolff's research shows that people are quite good at recognizing these kinds of causal situations and combining them together to better understand more complex events.

菲尔沃尔夫的研究表明，人们能够非常好地认识到这一类因果关系，将它们综合在一起，以便更好地了解更复杂的事件。

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A researcher is much more likely to be a savvy user who will understand a complex display of search results, as opposed to an encyclopedia user, who may be a young child.

研究人员往往更容易成为技能高超的用户，他们能够了解所显示的复杂搜索结果，与之相比，百科词典的用户就像个孩子。

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Trading costs are pretty complex, but the best way to understand them is to know simply that they rise the more often a mutual fund buys and sells its assets, i.e.

CNN: Hidden fees are eating up your 401(k)s