demarcation
n. 划界；限界
近义词：separation，differentiation，distinction，discrimination，segregation，isolation，demarcationline，contrast，dividingline，limit，line，
英英释义
Noun
- the boundary of a specific area
- a conceptual separation or distinction;
"there is a narrow line between sanity and insanity"
例句
用作名词(n.)
- There is no demarcation line along the Yalu River.鸭绿江是没有界线的。
- There is no sharp demarcation between these two types.在这两种结构之间，没有明显的分界。
- If anyone oversteps the demarcation lines, execute him.凡是越出自己营地范围，进入别人营地的，都应加以惩罚。