What do you mean by "double struggle"?

It means that public security organs severely crack down on criminal activities involving two kinds of special crimes. The double struggle of public security usually means that public security organs crack down on these two kinds of criminal activities through joint action to maintain social order and public safety. These two special crimes are "pornography and gambling" and "robbery and fraud". Among them, "gambling on pornography and drugs" refers to criminal activities involving pornography, gambling and drugs, while "stealing, robbing and cheating" includes many illegal and criminal acts such as theft, robbery and fraud.