宾客种类代码：用于区别不同种类宾客所要求特定宾客用品及服务的代码。

Differentiates amongst various types of guest to allow for delivery of specific amenities and services.

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我惊喜地发现，我可以用很少的代码实现这种类型的动态映射。

I was pleasantly surprised how I could achieve this type of dynamic mapping with so little code.

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它还在新代码和遗留代码之间提供一个保护层，以确保这两种类型的代码不致于对彼此造成不利影响。

It also provided a layer of protection between new and legacy code, ensuring the two types of code did not inappropriately affect one another.

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Remember last time, I said that there's different kinds of complexity in our code, and I suggested for simple branching programs, the amount of time it takes to run that program is, in essence, bounded by the number of instructions, because you only execute each instruction at most once.

但是这里有个很重要的点,记得上节课，我提过在我们的代码中，有不同种类的复杂度，而且我还说了对于简单的分支程序,运行这种程序需要的总体时间,大体上，是和指令的数目相关的,因为每个指令只会被执行最多一次。

麻省理工公开课 - 计算机科学及编程导论课程节选