The names of Chen Tian and Song Cha are the tea that Chen's father likes to drink, so they are called Tian Cha.
As for Chen Xixi, Song Ma likes it and hopes to be as beautiful as the sunset.
The surnames of Chen Tian and Song Cha were decided before Chen Tian and Song Cha were born. The eldest son's surname was Song and the second son's surname was Chen.
Intention: family affection