1. The word combinations of fumigation are: fumigation, incense, string, habit, earth, sky, tick, smoke, edification, embarrassment, clothes, incense, people, dye, eyes, ground and stove.

2. Xun (pronounced xūn, xùn) is a first-class word (commonly used word) in the General Specification for Chinese Characters. This word first appeared in the bronze inscriptions of the Western Zhou Dynasty. The original meaning refers to the appearance of fire smoke; Later, it was extended from the original meaning to fire smoking; Later extended refers to burning.