考研英语：长难句解析（43）

　　【例句】(2018英语一Text4)

　　Fundamentally, the USPS is in a historic squeeze between technological change that has permanently decreased demand for its bread-and-butter product, first-class mail, and a regulatory structure that denies management the flexibility to adjust its operations to the new reality.

　　【解题技巧】

　　符号断句，画出系动词和谓语动词，根据从句引导词分清逻辑关系

　　【参考译文】

　　根本原因在于，USPS正身陷“历史性挤压”：一面是技术变革导致对其核心产品(普通邮件)的需求永 久性降低;一面是监管体系使得其管理层无法灵活调整业务以适应新现实。