fall down on the job

Translations
плохо выполнять работу
He really fell down on the job by not completing the report on time.
Он действительно плохо выполнил работу, не закончив отчет вовремя.
Definitions
To fail to do something that is expected or required in one's work or responsibilities; to perform one's duties poorly or negligently.
Words
fall

verb
провалить
down

adverb
неудачно
on

preposition
с
the

article or possessive pronoun
определённый
job

noun
работа