这篇文章仅仅是涉及了在访问者模式中使用zippers的一些浅显问题；目的在于激发您进一步探索的兴趣。
This article has just scratched the surface of using zippers in the Visitor pattern; the point of it is to whet your appetite for further exploration.
尽管如此，但会计电算化在我国仍然处于初级阶段，面临着一系列问题，需要我们去进一步研究和探索。
For all that, but accountancy machine-readable turn at our country still be placed in an entry-level stage, face a series of problem, need us to study and investigate further.
文章仅对我国男女退休年龄问题站在社会性别角度做了初步的探索，而该问题的复杂性还有待做进一步讨论。
This text only do a preliminary exploration on our retiring age of male and female under the gender perspective, and the complexity of the issue remains to be further discussion.
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