特务

例句：

1. 1. The spy was able to infiltrate the enemy's headquarters.
   间谍成功地渗透到了敌人的总部。
2. 2. The agent was tasked with gathering intelligence on a potential terrorist attack.
   特工被指派收集关于潜在恐怖袭击的情报。
3. 3.The spy network was responsible for monitoring international trade and espionage activities.
   这个间谍网络负责监控国际贸易和间谍活动。