sticking point

1. N-COUNT A sticking point in a discussion or series of negotiations is a point on which the people involved cannot agree and which may delay or stop the talks. A sticking point is also one aspect of a problem which you have trouble dealing with. 癥結(jié); 難點(diǎn)

The main sticking point was the question of taxes. 主要的癥結(jié)是稅收問(wèn)題。