a tough nut to crack

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* 1.çetin ceviz

English Related Words* a crack shot

* a hard nut to crack

* a hard/tough nut to crack

* a nut case

* a tough act to follow

* a tough call

* a tough row to hoe

* a tough time of it

* acajou nut

* acorn nut

* adjusting nut

* anchorage bolt nut

* apple nut

* as tough as

* at the crack of dawn