sealed off是什么意思 sealed off怎么读
sealed off的英文翻译是什么意思，词典释义与在线翻译
动词 seal off:- make tight; secure against leakage
- impose a blockade on
sealed off的用法和样例
- Police sealed off the street.
警察封锁了街道。 - The tube was sealed off by fusing the material together.
管子以熔合管端的方法封闭起来了。
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