learn a rule

In French, 'apprendre une règle' is used to express the action of understanding or memorizing a specific guideline or principle. The verb 'apprendre' means 'to learn', while 'une règle' translates to 'a rule'. This phrase can be used in various contexts, such as in education, where students are often required to learn rules of grammar, mathematics, or any set of guidelines that help them navigate their studies.