Cách sử dụng
The expression "at least" means a minimum or a bottom amount. It is used to show the smallest amount that is required or expected. For example, if your teacher tells you to read at least two chapters for homework, it means that you must read two chapters or more. Similarly, if your friend tells you that a movie runs for at least two hours, it means that it could be longer but it won't be shorter. In other words, "at least" is used when you want to establish a minimum limit or set a minimum goal for something.