the courage and strength of mind necessary to do something difficult or unpleasant (used when you want to avoid using the word guts)勇气，决心，毅力（避免说 guts 时用）
He did not have the intestinal fortitude to implement the changes.他没有胆量实行变革。🔊🔊
It’s rare to find a politician with the intestinal fortitude to take a controversial stance.很少有政治家对小肠的态度采取有争议的立场。