keep your nose clean
保持良好的行為;避免麻煩
口語·勸誡避免麻煩
英文釋義
to stay out of trouble; to avoid doing anything wrong or illegal
例句
After his last arrest, he's trying to keep his nose clean and stay out of trouble.
典故來源
源自20世紀初美國俚語,鼻子干凈象征不沾染毒品或違法行為,引申為行為端正。