Practice makes perfect. It means that after plenty of practice, we will be perfect in what we do. Practice is the only way to achieve perfect.
For example, when we learn grammar, words, expressions and so on, the most important thing may be how to put what we’ve learned into practice. If we only learn the grammatical rules by heart and don’t do enough exercises, it is certain that we can’t understand them perfectly. But if we practice a lot, maybe we will understand them more deeply and we can find some good methods of applying them. Memorize the English words whenever time permits, and we can easily memorize them and even can find a way to memorize them more quickly.
There is another good example for it. A famous singer can sing very well. Of course, his talent is very important but he also practices singing frequently, probably every day.
If we want to improve our studies and work, we should remember that practice makes perfect.