VERBS➤be空着▸➤become, fall (only used of jobs僅用於指職位)空出;出缺◇A seat became vacant and he took it.有個座位空出來,他便坐了下來。◇A job fell vacant in the accounting department.財務部出現了一個空缺。➤remain仍然空着▸➤leave sth使⋯空着◇The office of treasurer had been left vacant since her retirement.自從她退休以後,司庫一職就一直空着。➤keep sth使⋯保持空缺◇The job will be kept vacant for a few more weeks.這一崗位還要再空上幾週。