cast iron stomach
擁有強大的消化能力，善于容忍或適應各種艱難或惡劣的情況
口語·形容消化能力強或適應力強
英文釋義
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.
典故來源
源自鑄鐵的堅固特性，比喻胃像鑄鐵一樣強韌，能承受任何食物或惡劣環境。