If something such as power, a custom, or an idea is entrenched, it is firmly established, so that it would be difficult to change it. 巩固
verb [vt. 及物动词] 使（权力、习俗、观念等）根深蒂固；把（军队，兵营等）置于壕沟（或其他设防的阵地）中；<古>侵犯，侵占（entrench on/upon）；运用其他法律保障（法律赋予的权利，尤指宪法赋予的权力）
It may also entrench deflation. 它也可能使通货紧缩更加难以逆转。
