Cách sử dụng
The expression "prey upon" is used to describe when someone or something takes advantage of or harms someone who is vulnerable or weaker. It can be used in situations where someone uses their power or a position of authority to exploit someone's weaknesses or vulnerabilities. For example, a bully might prey upon others by targeting those who are smaller or weaker than them. Another example could be a fraudster preying upon elderly people by tricking them into giving away their savings. It's a negative expression that implies someone is being unfairly targeted or taken advantage of.