Cách sử dụng
The word 'preoccupation' means being very focused on something or thinking about something a lot. For example, if you have an important exam coming up, you might be preoccupied with studying for the exam. Or if you are worried about a family member who is sick, you may be preoccupied with their health. It can often mean that you are so focused on one thing that you have a hard time thinking about anything else.