iron rations

剑桥词典

a basic amount of food for a person to live on
基本口粮
The hotel food was dreadful , so for three days we were on iron rations of fruit , cheese , and bread . 旅馆里的食物糟透了，所以连续3天我们只吃些水果、奶酪和面包充饥。 返回 iron rations