警戒线, 封锁线
a line or circle of police, soldiers, or guards preventing access to or from an area or building
:
• The police set up a cordon around the crime scene.
警方在犯罪现场周围设置了警戒线。
• A military cordon prevented anyone from entering the restricted zone.
军事警戒线阻止任何人进入禁区。
