1N-COUNT [usually singular]分界线;界限 A dividing line is a distinction or set of distinctions which marks the difference between two types of thing or two groups. 分界线;界限
There's a very thin dividing line between joviality and hysteria. [+ between]
激动和歇斯底里之间就一线之隔。
2N-SING (两个地区间的)界限The dividing line between two areas is the boundary between them. (两个地区间的)界限
...people on both sides of the dividing line between Israel and the occupied territories. [+ between]