a bundle of nerves

Translations
комок нервов
He was a bundle of nerves before the exam.
Он был комком нервов перед экзаменом.
Definitions
A bundle of nerves refers to a person who is extremely anxious or nervous, often displaying heightened sensitivity or emotional tension.
Words
a

article or possessive pronoun
неопределённый артикль
bundle

noun
сгусток
of

preposition
из
nerves

noun
нервов