Cách sử dụng
The expression "if in doubt" is used to suggest caution or hesitation when making a decision. It means that if someone is unsure about something, they should proceed with caution or seek more information before making a choice. For example, if someone is considering eating a food they are not sure is safe, they might say "if in doubt, don't eat it." It is a way to suggest taking a more careful approach to a situation when there is uncertainty.