Cách sử dụng
The expression "blunder on" means to continue doing something without being careful or precise, even if you are not sure what the correct way to do it is. It can be used when someone is making mistakes but keeps going anyway, or when they are trying to accomplish something but not really sure how to go about it. It is often used to suggest that the person is not doing things in the best way possible, and could benefit from some guidance or assistance. For example, you might say "he blundered on with his work, even though he wasn't really sure what he was doing."