The functional programming approach is easy to understand, but can be difficult to apply if you are used to the more procedural and state-focused imperative languages.
函数编程方式很容易理解，但是如果您习惯了过程序和关注状态的命令式语言，可能不太容易适应它。
This approach sets it apart from other document stores, which can often be difficult to get to grips with for SQL developers.
这种方法使它有别于其他文档存储，对于SQL开发人员来说，这一点很难掌握。
It's not difficult to envision that this same approach can be extended to other situations, such as handling common responses for online chat Help Desks.
不难设想，同样的方法可扩展到其他场景中，如用于在线对话HelpDesk处理某些常用反馈信息。
This approach tends to yield a more creative and fresh look but can be difficult to time correctly and tweak.
这个方法趋向一个更有创造力和新鲜的感觉但在时间上可能不会正确并且不易调整。
However, over the years, I have discovered that this approach to book reading was probably making things a lot more difficult for me than they needed to be.
然而，经过这么多年，我发现这种方法可能会使阅读更加困难。
This rule-based or functional approach is unfamiliar to many developers, and can be difficult and time-consuming to learn.
许多开发人员还不熟悉这种基于规则的方法（即函数方法），需要付出努力和花费大量时间来学习这项技术。
Many types of disease alone is difficult to cure medicine injections that must be carried out through the surgical approach to treatment.
很多种类的疾病仅仅靠吃药打针是难以治愈的，必须要通过手术的方法来进行治疗。
An attempt was made by means of a common approach to some of the restoration has received a reply in this matter seems to be difficult.
几个一般的手段中，试着在本案有关修复是一个简单意外通报了。
An attempt was made by means of a common approach to some of the restoration has received a reply in this matter seems to be difficult.
几个一般的手段中，试着在本案有关修复是一个简单意外通报了。
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