set: stresses the fact of placing in a definite, often final position or situation or relation: ~ food on the table.


settle: carries a stronger suggestion of putting in a place or condition of stability, ease, or security: ~d themselves gradually in their new home; and may imply a decisiveness or finality in ordering or adjusting something previously disturbed or unsettled: ~ doubts with a clear explanation.     order和adjust是动词，表示使有秩序、调整


fix: stresses permanence and stability: ~ed the pole firmly in the ground.


establish: is likely to give less stress to the fact of putting something in place than to subsequent fostering and care that helps it become stable and fixed: do not transplant a tree once it is ~ed.       多表示 1、正式建立，如机构公司政府 2、稳固建立树立，如位置地位，如例句中的树，如by then she was established as a star那时她作为明星的地位已然确立


set放置: 放到最终位置，settle定居安定: 增加了稳定舒适安全的意思，暗示之前搅扰不安，fix固定: 强调稳定持久，establish建立: 更强调后续的培养照料


记忆方法: 1) 首字母是词根FESS表示speak说，把声音放置出来<==放置

         2) 放置的意思是安放mean to put securely in position.