Cách sử dụng
The expression "have/get something down" means to learn and remember something so well that you can do it without mistakes or difficulties. This expression can be used in different situations, such as learning a new skill, memorizing information, or practicing a specific task. For example, if you are learning to play the guitar, you might say "I need to have the chords down before I perform in front of people" meaning you must practice the chords until you can do them without mistakes. Or if you are studying for an exam, you might say "I need to get these formulas down before the test", meaning you should practice and memorize the formulas so you can easily recall them during the test.