Cách sử dụng
'Spy' is a word that is used to describe a person who secretly watches or listens to others to gather information. It can be used in different contexts, such as in the military, politics, or even in everyday life. For example, a spy may be hired to gather information about a rival company's plans, a government's military movements or to monitor individuals who may pose a threat to public safety. It is important to note that spying is often seen as unethical and illegal, hence why spy activities are usually carried out in secret.