"Autumn chrysanthemums bloom yellow all over the ground, and every time it rains and dew, they bloom" means: chrysanthemums are in full bloom in autumn, and yellow flowers are dotted everywhere; every time it rains, chrysanthemums can absorb rain and dew and emit The fragrance of fennel. This sentence vividly describes the scene of autumn chrysanthemums blooming in autumn, as well as the chrysanthemums' love and absorption of rain and dew.