Why does Shuang'er, the wine capital, have an eldest son?
Shuang'er, the wine capital, has a eldest son: because she has a eldest son, but the previous video did not appear. The eldest son of Shuang'er, the wine capital, was born earlier. Because the eldest son is at school, he did not appear in the video. Now she is at home on holiday, which also provides good material for the video.