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