spying

• 指秘密监视或收集情报的行为，通常用于情报活动或跟踪他人。

A noun referring to the act of secretly observing or gathering information, often for intelligence or surveillance purposes.

不可数

1. Secret observationB2formal

   The act of watching someone or something in a secret or furtive manner.

   间谍活动

   • The detective was engaged in spying on the suspect's house.
   • She was accused of spying on her neighbors through the window.
   • Spying on someone without their consent is considered an invasion of privacy.

   同义词espionagemonitoringreconnaissancesurveillance

2. Intelligence gatheringB2formal

   The act of secretly collecting information about a country, organization, or person for political or military purposes.

   间谍活动

   • He was arrested for spying for a foreign government.
   • The agency specializes in industrial spying to steal trade secrets.
   • During the Cold War, spying was a major activity between superpowers.

   同义词espionageintelligencereconnaissancesurveillance

3. Detecting or noticingB1informal

   The act of detecting something or catching sight of something, often unexpectedly.

   察觉

   • I was spying a rare bird in the garden this morning.
   • She spent the afternoon spying interesting details in the old photographs.
   • He thought he was spying a familiar face in the crowd.

   同义词detectiondiscoverysightingspotting

• 动词，表示秘密观察或搜集关于某人或某事物的情报，常用于政治或军事目的。

A verb used to indicate the act of secretly observing or gathering information about someone or something, often for political or military purposes.

1. Secretly observeB2formal

   To secretly watch or gather information about someone or something, often for political or military purposes.

   暗中监视

   • The agent was caught spying on the embassy.
   • They used drones to spy on enemy territory.
   • She was accused of spying for a foreign government.

   同义词eavesdropmonitorobservepryshadowsnooptailwatch

2. Notice or seeB2formal

   To see or notice someone or something, often suddenly or from a distance.

   发现

   • I spied a familiar face in the crowd.
   • He spied a rare bird in the garden.
   • She spied the keys on the table as she walked by.

   同义词detectdiscernespyglimpsenoticeobservespot