go under the knife

Translations
лечь под нож
He had to go under the knife for heart surgery.
Ему пришлось лечь под нож для операции на сердце.
Definitions
To undergo surgery or a medical operation, typically one that involves cutting into the body.
Words
go

verb
идти
under

preposition
под
the

article or possessive pronoun
определенный артикль
knife

noun
нож