Definition
to completely encircle an area by constructing a wall
给某地建造围墙；用墙圈起某地
To enhance security, the school decided to wall off the playground.
为了加强安全，学校决定用墙围起操场。
The designer plans to wall off this area to increase privacy.
设计师计划用墙围起这个区域以增加隐私。
During construction, the crew walled off the site to prevent unauthorized access.
在施工期间，工作人员用墙围起了工地以防止未经授权的进入。