Cách sử dụng
The term "count down" refers to the act of counting backwards from a certain number to zero. This is often done in anticipation of an event or deadline, such as a rocket launch or the end of a sale. It is used to create excitement or to signify that something important is about to happen. For example, a New Year's Eve countdown involves counting down from 10 seconds to midnight in order to ring in the new year. The phrase can also be used more generally to refer to the process of waiting for something to happen, as in "I'm counting down the days until my vacation."