Cách sử dụng
The expression "burst in on" means to enter a room or a situation suddenly and uninvited. It often gives the feeling that you interrupted something or someone. For example, if you knock on someone's door but they don't hear you and you open the door suddenly, you would be said to have "burst in on" them. This expression is mostly used in situations where you catch someone by surprise or where you invade someone's privacy.