rule of thumb

Значение

a rough practical guide based on experience

Приблизительное правило, основанное на опыте.

Примеры

1. 1As a rule of thumb, one cup of rice feeds two people.
2. 2A good rule of thumb is to save a tenth of every pay cheque.
3. 3My rule of thumb is simple: if I haven't worn something for a year, I give it away.
4. 4The builder used a rule of thumb to work out how much paint we would need.
5. 5Is there a rule of thumb for how long to leave bread dough to rise?

Грамматика

Исчисляемое существительное: a rule of thumb, as a rule of thumb. Между словами ничего не вставляют.