LEARNit Dictionary
stumbling block
noun
/ˈstʌmblɪŋ blɒk/
UK
/ˈstʌmblɪŋ blɑːk/
US
1
something that causes problems and prevents you from achieving your aim
مانع, سد راه, مشکل, بازدارنده, مزاحم
synonym
obstacle