separations离析物separationn.分离；分居；缺口；分隔线；[化]离析；【航】间隔separation of field领域分离separation of power政权分离separation of region区域划分separation sharpness[化] 分离锐度separation axis dose偏轴剂量separation of levels层级分离separation work unit分离功单位separation structure分隔结构separation of eschar脱焦痂separation interview离职谈话

1. Behind a wall or a hedge do not tell your secret.
   隔墙有耳。
2. Friends should have a high wall between them.
   朋友之间，隔墙为安。