During hyperinflation, people had to carry bags of cash just to buy a loaf of bread.

hyperinflation 是由前缀 hyper-（表示"过度、超出正常范围"）和名词 inflation（通货膨胀）组成的复合词。hyperinflation 指"极端严重的通货膨胀"，即物价以极快速度上涨、货币急剧贬值的现象。