(Of a rule or a distinction made) fixed and definitive: there are no hard and fast rules about that
Más ejemplos en oraciones
- The programme is mainly aimed at secondary school students, but there are no hard and fast rules and a number of primaries also take part.
- I don't think there should be any hard and fast rules about this issue.
- As far as age limits are concerned, there are no hard and fast rules.
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