a tough nut to crack

Nghĩa

a problem or person that is very hard to deal with

Vấn đề hoặc người rất khó đối phó.

Ví dụ

1. 1This maths puzzle is a tough nut to crack, even for my dad.
2. 2The new client was a tough nut to crack, but Maria finally won his trust.
3. 3After three meetings the landlord still refuses every offer; he’s a tough nut to crack.
4. 4Getting Grandad to use a smartphone is a tough nut to crack; after a month he still can’t send a text.
5. 5After twenty years of failed schemes, city-centre traffic is still a tough nut to crack.

Ngữ pháp

Cụm danh từ, thường đứng sau be. Phần to crack luôn ở dạng động từ nguyên mẫu. Cũng dùng a hard nut to crack.

Thành ngữ gần nghĩa