更迭的英文：
supersession

They have found that it is connected with the passage of days and the phases of the moon.
他们发现代码与昼夜更迭和月亮圆缺有关

A change in the ministry
内阁成员更迭

It means a kind of sweetness that grows sweeter through the years.
它代表着一种随着岁月的更迭而更加甜美的感觉。

Over the past few years we have had the problems of replacing two leaders and of curbing inflation.
这几年我们出现了两个领导人更迭以及通货膨胀这样的问题

Because the ethnic groups migrate ,move and dynasty supersession in history , the china's distribute system is a resident of acrross each other.
由于历史上多次的民族迁徙、移民以及朝代更迭等原因，中国各民族的分布形式成了又杂居又聚居、互相交错居住的状况。