Cách sử dụng
The expression "keep your nose clean" means to stay out of trouble or avoid doing something that could get you in trouble. It's usually used as an advice to someone to make sure they don't engage in any improper or illegal activities that could reflect badly on them. The phrase can be used in many different situations such as when parents are advising children before going to a party, when friends are giving advice to each other, or when a boss is advising an employee to stay out of trouble at work.