封闭：紧紧关闭。
seal off // [ sealing sealed seals ]
动词词组 If one object or area is sealed off from another, there is a physical barrier between them, so that nothing can pass between them. 封闭
Windows are usually sealed off.
窗户通常是封闭的。
→seeseal
封闭；把…封锁起来
... amount to意味着 at stake濒于险境，处于成败关头 seal off把...封锁起来 ...
... [close planting;serried row planting] 缩小栽种的行距或株距,使单位面种的栽种密度增加 [seal off] 严密封闭杜绝出入 [airtight] 紧密不漏气或密不通风 ...
The city should seal off those tunnels.
这个城市应该封闭那些隧道。
Freezing rain can seal off your car and lock you inside.
冻雨会封住你的车，把你锁在车里。
A variety of schemes to either block up or seal off the blowout preventer are in development.
多种封闭或密封防喷装置的方案也在构思之中。
Nor can India seal off its financial system to the same extent as China.
ECONOMIST: China��s banking system is not a good model for India
Police seal off a farm in County Louth as the Irish Republic maintains a full foot-and-mouth alert.
Then there's encryption software to seal off your hard drive in case your computer goes for a walk.