Cách sử dụng
The expression "be off the mark" means that something is incorrect or inaccurate. It is often used when someone makes a statement or assumption that is not true or when someone misunderstands a situation. For example, if someone says "I think the answer is 20" but the actual answer is 15, we would say that their answer is off the mark. You can use this expression in both formal and informal settings, such as in school, at work, or in everyday conversation.