en tough nuts to crack (n)
― FormOf ⟶
Weight: 1.0
en tough nut to crack Source: English Wiktionary
en tougher nut to crack (n)
― FormOf ⟶
Weight: 1.0
en tough nut to crack Source: English Wiktionary
en toughest nut to crack (n)
― FormOf ⟶
Weight: 1.0
en tough nut to crack Source: English Wiktionary