an ounce of common sense

Translations
куча здравого смысла
If someone had an ounce of common sense, they would not have made that decision.
Если бы у кого-то была куча здравого смысла, он бы не принял это решение.
Definitions
A small but valuable amount of practical judgment or basic good reasoning that helps someone make sensible decisions or avoid obvious mistakes.
Words
ounce

noun
унция
sense

noun
чувство
common

adjective
общий