工作人员从监狱的主体区域撤了出来，但封锁了监狱四周。

Staff withdrew from the main part of the prison but secured the perimeter.

《柯林斯英汉双解大词典》

他们封锁道路，负责架设长达25英里的人体屏障，并在一个广阔的区域内实施停车管制令。

They blocked roads, set up 25-mile human barriers, and enforced parking control orders over a wide area.

youdao

这一整个区域都封锁起来了，以免这个男人逃跑。

This whole area is sealed off in case the man get away.

youdao