2. Pronunciation combination [pāo]: eye blebs, paulownia, bubble goods, urine bubbles and bubbles.

3. Bubble: pā o ?ㄠˉ. pà o ?ㄠˋ "Shuo Wen Jie Zi": "Bubble, water. Out of Pingle, northeast into Si. From water and sound. " . (This is not an etymology, for reference only) It is a "package" paradigm for people to get pregnant and give birth to a child (package). The two paradigms of water and bag are superimposed. Wrapping with water is a model of bubbles.