What do you mean by "double opposition" in epidemic prevention and control?

Anti-smuggling and anti-smuggling According to relevant information, epidemic prevention and control refers to anti-smuggling and anti-smuggling. "Smuggling" refers to evading customs supervision in violation of the customs law and other relevant laws and regulations of the state. "Smuggling" refers to the violation of entry and exit regulations by natural persons, and it is illegal to go out without going through the port, border inspection or permission.