a piece of work

Translations
сложный или неприятный человек
He's a real piece of work, always stirring up trouble.
Он настоящий неприятный человек, всегда создает проблемы.
Definitions
A task, project, or assignment that needs to be completed; informally, it can also refer to a person who is difficult, eccentric, or unusual.
Words
a

article or possessive pronoun
один
piece

noun
часть
of

preposition
из
work

noun
работа