Stay in Macao for a long time by virtue of * * * relationship. Casino is a class between casino and gambler. They are similar to intermediaries, helping the owners who contract the VIP rooms of casinos to attract customers and draw commissions from them. This is a * * * relationship under the special circumstances of the mainland and Macao. In the 1980s and 1990s, Dieyards attracted guests from Hong Kong and Southeast Asia. However, since the beginning of the new century, Macao's gambling industry has become more and more dependent on the mainland rich, and more and more mainlanders are among them. They have better connections and know more mainland rich people, which has an advantage over local dolls. Now most stacked dolls are from mainland China.