clearance

clearance的英语例句

1. He has a security clearance that allows him access to classified information.

   他获得了安全许可，可以接触机密信息。

2. They have to wait for clearance from air traffic control.

   他们需要等空中交通管制人员的放行。

3. The UN pledged to help supervise the clearance of mines.

   联合国承诺协助监督扫雷工作。