Lau Ying-Hung (English: Kathrine Lau; born on July 16, 1955), formerly known as Hu Kouqin, known as Sister Liu, a Hong Kong female singer and actress, changed her stage name to "Liu Yinghong" in the early days of her debut, and changed back to "Liu Yinghong" in the 1980s and is still in use today. He joined Li's TV artist training class in 1977, joined TVB in 1986, and quit the entertainment industry in 1995. In 2006, Lau Ying-Hung returned to Asian TV to film "A Small Story in a Big City". In 2...