Righteousness: private school; Private schools.
It is likely to point to "private school"; Zhai: Study, study.
"private" pinyin si; "Shu", pinyin Shu; For Cantonese, it is possible that si and shu are pronounced the same or very similar.
S initial pinyin → H/F → P/B, take B, "private" is converted into bi, and the modification is: boo, which is homophonic with "no", reminiscent of the sound of hitting a child's palm with a bamboo board;
"Shu" and "private" have the same pronunciation, and finally "cloth" is homophonic with "cloth";
Private school → Special pronunciation: "Bubu" or "Bobo".
As for why the word "home" should be added? The word Shu originally meant a place, a place for teaching and learning, and a private school. The problem is that the word "private school" has become an attribute after special oral reading, and the word "Zhai", as an onomatopoeic word, can only be formed by adding some structures.
Keywords pure phonological analysis, throwing bricks to attract jade,