dividing line

基本解释

Troops were disengaged from the dividing line.
雙方軍隊在分界線脫離了接觸。
Just think of that day as a dividing line between the smoking you and the new and improved nonsmoker you'll become. Mark it on your calendar.
把那一天儅做你從一個吸菸者變成一個全新的進步的無菸者得分界線，把那天從日歷上標記下來。
What could be the cause of this strange invisible dividing line that skims across south-west France, cuts through Italy close to Florence, and continues eastwards through the middle of the Black Sea?
是什麽原因導致這條奇怪的無形分界線跨越法國西南部，穿過意大利、接近彿羅倫薩，又繼續曏東穿過黑海中部？

There is a clear dividing line between Labor and the Liberal Democrats on the one side and the skeptical Conservative policy on Europe on the other.
H.K.Suh from the group Korean Americans for Peace said he believes a drawdown of U.S.troops everywhere, including on the dividing line between the two Koreas, would be beneficial to the United States.
The Greek Cypriots canceled the latest session Thursday after Turkish Cypriot authorities held up a bus convoy of Greek pilgrims for lengthy security checks as they sought to cross the dividing line between the communities.

Smart companies today understand that there is no dividing line between traditional and social media.
FORBES: Brand Passion Beats "Liking"

A dividing line is a distinction or set of distinctions which marks the difference between two types of thing or two groups.
The dividing line between two areas is the boundary between them.