Cách sử dụng
The word "undo" means to change something that you did before. For example, if you accidentally delete a sentence you wrote, you can "undo" it by clicking the undo button or using the keyboard shortcut. It can also mean to reverse the effects of something you did, like apologizing to undo the hurt feelings you caused. You can use the word "undo" in many situations, but it is most commonly used when working on a computer or correcting a mistake.