iron rations

剑桥词典

a basic amount of food for a person to live on
基本口糧
The hotel food was dreadful , so for three days we were on iron rations of fruit , cheese , and bread . 旅館裡的食物糟透了，所以連續3天我們衹喫些水果、嬭酪和麪包充飢。 返回 iron rations