گزارش خطا در معنی کلمه 'hard nut to crack'

1 general:: Also, tough nut to crack. A difficult problem; also, an individual who is difficult to deal with. For example, This assignment is a hard nut to crack, or It won't be easy getting her approval; she's a tough nut to crack. This metaphoric expression alludes to hard-shelled nuts like walnuts. [Early 1700s]

2 general:: Phrase(s): a hard nut to crack [and] a tough nut to crack Fig. difficult person or problem to deal with. • This problem is getting me down. It’s a hard nut to crack. • Tom sure is a hard nut to crack. I can’t figure him out.