n.

1. 哨兵线
2. 饰带；绶章
3. 飞檐层（建筑）
4. 封锁线；防疫线

vt.

1. 包围隔离（某地区）（常与off连用）

n.

1. a line or circle of police, soldiers, or guards preventing access to or from a place.
2. a fruit tree trained to grow as a single stem.
3. Architecture  another term for string course.

v.