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同义词： seal
同义词： blockade
以上来源于: WordNet
PHRASAL VERB 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。
→see seal
block out , obturate
The city should seal off those tunnels.
这个城市应该封闭那些隧道。
youdao
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.
BBC: Foot-and-mouth disease timeline
Then there's encryption software to seal off your hard drive in case your computer goes for a walk.
FORBES: Magazine Article
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