entrenchment
noun [ U ] mainly disapproving uk/ɪnˈtrentʃ.mənt/ us/ɪnˈtrentʃ.mənt/
牢固确立;根深蒂固;积重难返
the process by which ideas become fixed and cannot be changed
There has been a shift in opinion on the issue after a decade of entrenchment. 对这个问题人们曾囿于成见10年之久，现在终于转变了观点。