cast iron stomach
拥有强大的消化能力，善于容忍或适应各种艰难或恶劣的情况
口语·形容消化能力强或适应力强
英文释义
an ability to tolerate or digest something that would normally cause discomfort or illness
例句
After years of eating street food in Asia, he developed a cast iron stomach that could handle anything.
典故来源
源自铸铁的坚固特性，比喻胃像铸铁一样强韧，能承受任何食物或恶劣环境。