反间谍

例句：

1. 1. The government is cracking down on the activities of its anti-spy agency.
   政府正在打击其反间谍机构的活动。
2. 2. He was a spy who helped the resistance fight against the occupying forces.
   他是一名帮助抵抗者对抗占领军的秘密警察。
3. 3. The spy network was able to gather valuable intelligence from within the enemy's ranks.
   这个间谍网络能够从敌人的内部收集宝贵的情报。