In the meantime, there are new risks and challenges in the implementation of "one country, two systems," the most prominent of which is heightened national security risk, Zhao added.
As a result, the relationship between the world's top two economies now faces what Chinese State Councilor and Foreign Minister Wang Yi recently described as the most serious challenge since the two sides forged diplomatic ties 40 years ago.
The "America First" slogan has no place at the roundtable of multilateralism, while the Trump administration has been nagging others to "like it or lump it," and meanwhile, threatening withdrawals from multilateral mechanisms.
Only by taking quick action with great determination can one turn things around in times of difficulty, the 30-year-old Egyptian said.
China has no intention to fight a "diplomatic war" with the U.S. side as it will only hurt the interests of the two peoples even more, Wang said.
Everyone can see easily and clearly that the U.S. goal is to keep its monopoly in science and technology and deny other countries the legitimate right to development, Wang said.
China-Arab trade volume reached 244.3 billion dollars in 2018, up 28 percent year-on-year. In 2019, the figure hit 266.4 billion dollars, an annual growth of 9 percent.
"China will not allow these people to get their way," said Wang.
It has become increasingly clear that each time Washington abused the national security pretext to attack foreign industries or companies, it actually reveals the government's indulgence in protectionism, hegemonism and bullyism, which is akin to "modern piracy," as a German official has said.
"Their allegations are fanfare for ideological confrontation and the Cold War mentality," Yang said. "They are nothing short of discredit to the enormous efforts and contributions made throughout past decades by people across the two societies to promote the development of China-U.S. relations."
According to him, these Chinese workers will have a mandatory seven-day medical check before flying to PNG, and undergo a 14-day quarantine in designated hotels in Port Moresby after arrival.