MAKE, ETC. A DENT IN STH
Meaning of MAKE, ETC. A DENT IN STH in English
to reduce the amount of sth, especially money :
The lawyer's fees will make a dent in our finances.
Oxford Advanced Learner's English Dictionary.
Оксфордский английский словарь для изучающик язык на продвинутом уровне.
2005