警戒線, 封鎖線
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.
警方在犯罪現場周圍設置了警戒線。
• A military cordon prevented anyone from entering the restricted zone.
軍事警戒線阻止任何人進入禁區。
