| 单词 | a-hard-nut-to-crack-a-tough-nut-to-crack |
| 释义 | a hard nut to crack/ a tough nut to crackphrase [usually verb-link PHRASE] See full dictionary entry for nutIf you say that something is a hard nut to crack or a tough nut to crack, you mean that it is difficult to do or to understand. [informal] Getting out there is in many ways the hardest nut to crack. Definition of 'a hard nut to crack/ a tough nut to crack' |
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