What is the function of overlap in composition?

Repeat aab type:

Mao Mao is rainy, whispering, high-spirited, numb and bright, outstanding, comprehensive, walking around, happy, mother-in-law's family, a generation of flowers, Achnatherum splendens, emergency response, leisurely swimming, blinking, waving, squeaking, quacking, croaking, haha mirror, cheerleading, walking around.

The function of reduplication:

1, which enhances the sense of rhythm, catchy and rich in music; Play an important role.

2. Some overlapping words imitate sounds, which are very realistic.

3. Some overlapping words show movement and rich meanings.

4. Some reduplicated words render the atmosphere as if it were true, and there is also the function of reduplicated words in poetry.