security clearance

劍橋詞典

official permission for a particular person to enter a building or area or to be given an important job , after making certain that they are not a threat
保安許可証
Some defence jobs require security clearances that are only issued to native-born citizens . 有些國防部門的工作要求申請人持有保安許可証，而這些許可証是衹發(fā)給本國公民的。 返回 security clearance