rail off
用栏杆隔开
例句与用法:
The pond is railed off to stop children falling into it.
池塘用栅栏围起隔开,以防止小孩落水。
The bottom of the garden was railed off to stop the children straying into the road.
花园的尽头用栏杆隔开,以防止小孩走到大路上去。