Cách sử dụng
The word 'flex' is often used to mean 'show off' or 'demonstrate a skill or ability'. We use it when we want to impress someone with what we can do. For example, if a person is really good at math, they might say "I'm going to flex my math skills on this problem". It can also be used in a more literal sense when talking about physical strength, as in "He was flexing his muscles to show off how strong he was." Overall, 'flex' is used in situations where you want to show that you are talented or capable in some way.