Cách sử dụng
The expression "walk in on" means to unexpectedly find someone doing something, especially when it is private or something they don't want others to see. For example, if you accidentally open the door to a bathroom and see someone inside, you can say you "walked in on" them. This expression can also be used in other contexts, such as walking in on a meeting or conversation. It is important to be respectful of others' privacy and avoid walking in on them without knocking or asking permission first.