secret service

The secret service operated against the enemy during the war.

在战争期间对敌方展开地下工作。

The secret service agents hustled the speaker out of the amphitheater.

特务机的代理人把演讲者驱逐出竞技场。

The recruits were thoroughly vetted before they were allowed into the secret service.

报机招募的新成员要经过严格的审查。

The secret service agents in charge of protecting the President tried to be as unobtrusive as possible.

负责保护总统的秘密安全人员的行动尽可能不引人注目。