people say that sth is the exception that proves the rule when they are stating sth that seems to be different from the normal situation, but they mean that the normal situation remains true in general
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people say that sth is the exception that proves the rule when they are stating sth that seems to be different from the normal situation, but they mean that the normal situation remains true in general
The exception that proves the rule.
Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición