cordoning
v.
封锁，用警戒线围住( cordon的现在分词 );
例句:
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Or they should seek to slice through the entanglements, cordoning off the dangerous bits.
或者他们应该寻求切片通过纠缠, 逃离危险的处境.
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About 7, 000 police were patrolling the city's streets, cordoning off the fairgrounds.
来自MSN
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She said staff at the site had responded very quickly by cordoning off the areas and putting notices up to inform the public.
来自BBC