flatten (someone's) hopes

Translations
разрушить (чьи-то) надежды
The news of the cancellation flattened her hopes of a vacation.
Новость об отмене разрушила её надежды на отпуск.
Definitions
To completely destroy or diminish someone's expectations or aspirations, often by delivering disappointing news or criticism.
Words
flatten

verb
разрушить
someone's

article or possessive pronoun
чьи-либо
hopes

noun
надежды