罪恶感是模糊的，怠惰的，往往会令你麻木难行。
有时候，要解决怠惰的问题，就是要依靠撑下去的力量。
Sometimes the solution for burnout is just to power through it.
随后详细分析怠惰的虚地址空间管理、两级缓冲的物理内存管理；
Secondly, lazy management of virtual address space and management of two-layer-cached physical memory are analyzed.
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