First of all, you should remember the root words, but you don't need to memorize them, because they are all regular. Twenty-six letters are divided into five areas. For example, the roots of A are all like cursive script, which is not difficult to remember. The most important thing is to practice often. Only by practicing often can you be familiar with the roots, which is the premise of typing. When you are familiar with the root, you will find that you can type well. Hehe, when typing plastic characters, some of them are irregular. You have to check them and see how they are removed. Don't look it up because you are lazy, or remember its buttons, which is useless. Only by knowing how it was disassembled can we always remember how it played.