Cách sử dụng
The expression "drum up" means to try to create or gather support, interest or business for something. It can be used in situations where you need to promote an idea, product or event to get people interested or involved. For example, you might hear someone say "We need to drum up support for our charity fundraiser" or "I'm trying to drum up business for my new restaurant." It's like beating a drum to make some noise and get people's attention.