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