If you adopt a reductionistic perspective, however, this line of code introduces several new concepts.
然而如果你采用的是简化论的观点，这一行代码引入了几个新的概念。
2
In doing so, you will combine a reductionistic understanding of the details with the holistic understanding of the program as a whole.
这样做，你需要结合使用简化论理解细节和整体论理解整个程序。
3
On the other hand, to practice writing programs, you have to adopt enough of the reductionistic perspective to know how those programs are put together.