They are not a nation of walled gardens and closed gates .

美国人不是围墙高筑、重门深锁的国民。

The old walled city of jerusalem .

有城墙的耶路撒冷老城区。

They walled off part of the room .

他们把房间一部分用墙隔开。

They 've walled off the area for safety reasons .

他们为了安全原因把这个地区围开。

Now it 's the web 's turn to face the pressure for profits and the walled gardens that bring them .

如今网页网络不得不回头面对盈利压力，而能制造利润的恰恰是有围墙的花园。