Cách sử dụng
"Crack down" means to take strict measures or actions to stop or prevent something from happening. It is often used in situations where there is a problem or wrongdoing that needs to be addressed. For example, a government might "crack down" on illegal drugs by increasing police patrols and imposing harsher penalties for drug-related offenses. In everyday language, this phrase can be used to describe any situation where someone is taking strong action to stop something bad from happening.