Cách sử dụng
"Say when" is an expression used when someone is pouring a liquid into another container or adding something to a dish. It means that the person adding the liquid or ingredient should stop when the other person says "when." For example, if someone is pouring milk into a cup for you and you say "say when," they will stop pouring when you say "when" to indicate that the cup is full enough. This expression helps ensure that the right amount of liquid or ingredient is added to a dish or container.