They each judge one side line and one base line. 他们四人各自裁判一条边线或一条端线。
He's got hold of the ball out on the touch line. 他在边线上得到了球。
The line of the two countries is too vague. 这两个国家的界线太模糊了。
It is difficult to define the border between love and friendship. 爱情和友情之间的界线难以划清。
The terms of the agreement respect the boundary line between the two countries. 协议的条款涉及两国间的边界线。
The threat of war perceived to come from large armies attaching across an internationally recognized line of demarcation. 战争的威胁来自跨过国际承认的边界线发动的大规模的武装进攻。
