Cách sử dụng
The expression "knock over" means to accidentally knock something down, usually causing it to fall over. For example, if you accidentally hit a glass with your elbow and it falls off the table, you have "knocked over" the glass. This expression can be used in many contexts, such as describing a clumsy person who often knocks things over, or talking about a natural disaster that knocked over trees or buildings. It's a common expression in English, but it's important to use it in the right context to avoid confusion.