携程 2025 年第四季度净营收约 153.98 亿元，同比增长约 20.83%；
2025-2026年宏观周期转型下的普通人阶层跃迁、创业格局与求学策略深度研究报告
，这一点在搜狗输入法2026中也有详细论述
you to focus on the remaining ones that really matter.
Segmentation maps a logical address (a 16-bit selector plus a 32-bit offset) to a 32-bit linear address, enforcing privilege and limit checks along the way. Paging then translates that linear address to a physical address, adding a second layer of User/Supervisor and Read/Write protection. The two layers are independent: segmentation is always active in protected mode, while paging is optional (controlled by CR0.PG).