Cách sử dụng
The expression "on the fly" means to do something quickly and without much preparation, usually in the moment or on the spot. It is often used in situations where someone needs to make a decision or solve a problem without much time to think about it. For example, a chef might make a new recipe on the fly if they don't have all the ingredients they need. Or, a person might come up with a quick response to a question on the fly during a conversation. Overall, the phrase emphasizes spontaneity and the ability to adapt quickly.