Cách sử dụng
The word 'duplicity' is used when someone is being dishonest or deceitful. It is usually used in situations where a person pretends to be nice or honest, but is actually doing something bad or wrong behind the scenes. For example, if your friend tells you they will help you with your homework, but they actually take credit for your work and don't give you any credit, that is duplicity. It is important to be aware of duplicity in people's behavior so that you are not taken advantage of or misled.