(as) tough as old boots

US /əz tʌf əz oʊld buːts/
UK /əz tʌf əz oʊld buːts/
"(as) tough as old boots" picture
1.

twardy jak skała, nieugięty

very strong and able to deal with difficult situations

:
My grandmother is 90 years old and still (as) tough as old boots.
Moja babcia ma 90 lat i nadal jest (tak) twarda jak skała.
You need to be (as) tough as old boots to survive in this industry.
Musisz być (tak) twardy jak skała, żeby przetrwać w tej branży.