noun
stumbling block (to sth) | stumbling block (to doing sth) something that causes problems and prevents you from achieving your aim
SYN obstacle
noun
stumbling block (to sth) | stumbling block (to doing sth) something that causes problems and prevents you from achieving your aim
SYN obstacle
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005