What does it mean to kill seven times a month?

The "seven kills in the middle of the month" in the four-column fortune-telling means that the five elements of the moon kill the five elements of the sun column, and it must still be dry in the yang and dry in the yin. For example, the Japanese column is Geng Jin and the moon is C fire. Because both of them are dry days, for Geng Jin, it is "killing on January 7." The Japanese Lord Geng Jin, the month dry Ding Huo, Ding Huo as the "official history". Seven kills are also called partial officials. Official and partial officials together are called official killings.