Cách sử dụng
The expression "there's no such thing as a free lunch" means that nothing can be completely free. Everything has a price, even if it's not apparent at first. It is often used to remind people that there may be hidden costs or consequences associated with taking something that appears to be free. For example, if someone offers you a free vacation, you may have to sit through a long timeshare presentation or pay additional fees. Therefore, it's important to be cautious and not believe that everything that seems free is truly free.