rule of thumb
общепринятое правило; образец, модель
It is a rule of thumb that if a fire alarm sounds, it's necessary to call 911.
Другие идиомы:
- thumbs up on (someone or something)
- under one's thumb
- stick out like a sore thumb
- rule the roost
- all thumbs
- turn thumbs down (on something)
- give (someone or something) the thumbs up
- rule (someone) with an iron fist
- twiddle one's thumbs
- rule (someone) out of order
- rule out (someone or something)
- thumbnail sketch
- armpit of (somewhere)
- bite one's nails
- closefisted (with money)