Why does the premature baby cotton-padded jacket leak air?

How did the premature baby cotton-padded jacket leak? It means that the child was naughty.

"Little cotton-padded jacket" is generally used to describe a daughter who is considerate and considerate. Because girls have innate tenderness and delicate feelings, their friendship with their parents is more intimate and mellow, so their daughters, like "Little cotton-padded jacket", warm their parents' hearts.

"Little Cotton-padded jacket" is a high-level summary of the close relationship between parents and daughters, and it is an image interpretation of the daughter's care, care, understanding and help to her parents and emotional blending.

comparing my daughter to a small cotton-padded jacket with air leakage means that my daughter is not intimate, not only does she not keep warm, but also has some air leakage, which makes her parents cold.