Cách sử dụng
"Mull over" is an expression that means to think about something carefully and for a long time to decide what to do or think about it. People usually use this expression when they have to make an important decision or they want to understand something fully before acting on it. For example, you could say "I need to mull over my options before deciding which university to attend" or "I need to mull over what my boss said before responding to her."