sequential file structure

例句：

1. 1. The sequence of events is crucial to understanding the cause and effect.
   事件的顺序对于理解原因和结果至关重要。
2. 2. The succession of seasons changes the landscape in a natural way.
   季节的更迭以自然的方式改变着景观。
3. 3. The orderly arrangement of books on the shelf helps to keep them organized.
   书架上书籍有序的排列有助于保持它们的组织。
4. 4. Chronologically, the story begins with the discovery of the lost treasure.
   按照时间顺序，故事始于发现失落宝藏。