border
Definition
A line separating two political or geographical areas; also, to be adjacent to.
中文 政治或地理区域之间的界线；也指相邻
Example
"The border between Canada and the U.S. is the longest undefended border in the world."
A line separating two political or geographical areas; also, to be adjacent to.
中文 政治或地理区域之间的界线；也指相邻
"The border between Canada and the U.S. is the longest undefended border in the world."