hard labour

Translations
тяжёлый труд
After his crimes, he was sentenced to ten years of hard labour.
После своих преступлений он был приговорён к десяти годам тяжёлого труда.
Definitions
Hard labour refers to physically demanding and strenuous work, often involving manual tasks. Historically, it has also been used as a form of punishment in prisons, where inmates are required to perform tough physical work as part of their sentence.
Words
labour

noun
труд
hard

adjective
твердый