Habits and field paths are formed in the same way: by repetition.
习惯和田间小径的形成方式相同：通过重复。
2
In addition, the key field specifies repetition elements.
此外，key字段指定重复元素。
3
In the field of repetition dates on the just repeated page write the number of the repetition, today's date and the number of items that have not been remembered.