This is a proof question about childhood sweetheart——
∵Gu Cheng=Bamboo Horse, Liang Chen=Green Plum
∴Gu Cheng + Liang Chen = Bamboo Horse + Green Plum
∵Gu Cheng + Liang Chen = young and frivolous
∴Liang Chen＋Gu Cheng≠Childhood sweethearts
∴Liang Chen＋Gu Cheng≠fall in love
∵Liang Chen has a crush on Gu Cheng
Also∵Gu Cheng likes Liang Chen
∴Everything is unknown
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"For Mao, my name is Liang Chen! Liang Cheng, Liang Cheng, Liang Chen, Liang Chen... But for Mao, it's Chen!"
The Liang family's father lowered his head and coughed: "What a nice name..."
A certain woman looked sad: "I know your surname is Liang and your wife's surname is Chen, but why does Mao want to call me Liang Chen?"