封锁的英文：
blockade
seal off

参考例句：

The blockade ceased
封锁结束了。

break [lift, raise] a blockade
冲破 [解除] 封锁

They assumed that the blockade would be lifted
他们估计封锁将会解除。

They are threatening to impose a blockade on the country.
他们威胁说要对该国实行封锁。

The police have closed off the main streets of the downtown.
警察封锁了闹市区的各主要大街。

Police cordoned off the area until the bomb was defused.
警方封锁了这个区域直至拆除炸弹的引信为止.

Police cordon off the area until the bomb is defuse.
警方封锁了这个区域直至拆除炸弹的引信为止。

Staff withdrew from the main part of the prison but secured the perimeter.
工作人员从监狱的主体区域撤了出来，但封锁了监狱四周。

blockage of access to information
封锁信息

regional blockade;Barriers between the regions
地区封锁

blockade是什么意思：
n. 封锁；障碍物
v. 封锁，阻塞

break [lift, raise] a blockade
冲破 [解除] 封锁

They are threatening to impose a blockade on the country.
他们威胁说要对该国实行封锁。

They assumed that the blockade would be lifted.
他们估计封锁将会解除。

seal是什么意思：
n. 海豹；图案，印章；封印；保证，誓约；标志，象征
v. 保证；密封；确定；盖章；密封

A stamp or seal meant to be impressed.
图章用来盖戳的图章或印章

The experience seals their friendship.
这一经历确定了他们的友谊。

Sealing is prohibited in many countries.
许多国家禁止捕海豹。

off是什么意思：
adv. 掉，下；离开；隔开；切断；停止；；休息；光，完，尽；全部地
prep. 从...离开；从...向下；在...的外面；偏离...；从...分岔；不再从事...；低于...
adj. 关着的；停止流通的；延期的；取消的；不工作的；处于...境况的；萧条的
v.（用于祈使句）走开，滚开；站开
n. 关掉

Is the water on or off?
自来水龙头开着还是关着？

The gilt is off.
幻想破灭了。

to nip off; to cut off; to break
掐断