Cách sử dụng
"Play up" is an expression we use when something isn't working properly or is causing trouble. For example, if a machine or appliance in your house keeps breaking down and causing problems, you could say that it's "playing up." Another example could be when a child is misbehaving or not following rules, you might say they are "playing up." It's a way to describe when something is not working as it should or causing problems.