The roads were cordoned off.是什么意思？

The roads were cordoned off.

这些道路被封锁了。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

roads

n. 锚地，路( road的名词复数 )，通路，途径，方法；

例句
The roads are built to accommodate gradual temperature changes...
修建这些道路时考虑到了温度的逐渐变化。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

cordoned

v. 封锁，用警戒线围住( cordon的过去式 )；

例句
The police roadblocks are still in place and the immediate vicinity of the house remains cordoned off.
警察设置的路障还在，房子四周仍然用警戒线隔离着。

off

prep. 从…落下，离开，从…去掉，下班；adv. 离开，距，离，被取消，下班；adj. 不新鲜的，不能接受，不礼

例句
He eased his foot off the accelerator.
他松开了油门。