访问操作系统提供的内存地址要比读取(物理内存中的)常驻地址慢很多，因为必须硬盘驱动器加载它。
Accessing a memory address that has been swapped is a lot slower than reading a resident (in physical memory) address because it must be loaded from the hard drive.
常驻部分拦截操作系统的一些API功能，当这些功能被调用时会感染新文件。
This resident part intercepts some API functions of the operating system and when these functions are called, new files get infected.
一段短的计算机程序，它常驻计算机或很容易装入计算机中。引导程序的执行能把另一个较大的程序如操作系统或其装入程序引入到内存中。
A short computer program that is permanently resident or easily loaded into a computer, whose execution brings another, larger program, such as an operating system or its loader, into memory.
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