blood, sweat, and tears
огромное усилие (кровь, пот и слёзы)
I put much blood, sweat and tears into writing the essay.
Другие идиомы:
- sweat blood
- blood runs cold
- too rich for (someone's) blood
- blue blood
- in cold blood
- in one's blood
- have (someone's) blood on one's hands
- out for blood
- make (someone's) blood run cold
- make (someone's) blood boil
- draw blood
- bad blood (between people)
- curdle (someone's) blood
- taste blood
- like getting blood out of a stone