Cách sử dụng
The expression "say what?" is used when you didn't hear what someone said or you are surprised by what they said. It's a way to ask the person to repeat what they said or to make sure you heard them correctly. For example, if someone says something confusing or unexpected, you might say "say what?" to show that you need them to explain or repeat themselves. It's a casual and informal phrase commonly used in spoken English.