Happy families are all the same. Little Chang's family, who speak the "national language," (Mandarin), all beam with happy smiles, while the Cantonese families around them, who speak the "vernacular," (Cantonese), are no different.
幸福的家庭都是一樣的，說「國語」的小璋一家笑容燦爛，和周遭說「白話」（廣東話）的廣東家庭並沒有差別。