如题所述
seal 英[siːl]
n.印记;图章;密封物;约束,保证;标志;海豹
vt.盖章于;确认;使…成定局;密封
vi.捕猎海豹
例句:
The soldiers were deployed to help police seal the border.
士兵被派去协助警察封锁边境。