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更新日期:2026-08-14
seal sth ↔ off to stop people from entering an area or building, because it is dangerous〔因有危险而〕封闭,封锁〔某地区或某幢建筑〕:•Following a bomb warning, police have sealed off the whole area.接到有炸弹的警告后,警方封锁了整个地区。