One of the warnings is that developing core technologies is the way to strengthen the country. The core technology is the heavy weapon of the country. Developing core technology is the way to strengthen the country, and the control of core technology is the biggest hidden danger of national security. The 19th National Congress of the Communist Party of China put forward a two-step strategy of building a socialist modern power, clearly implemented the new development concept, and realized a new journey from high-speed economic growth to a high-quality power. We must persist in independent innovation, be brave in tackling difficulties, vigorously develop core technologies, and train a large number of cutting-edge talents who master core technologies. Only in this way can the country be independent and self-reliant in development and competition, and national security and economic security can be strongly backed and reliably guaranteed.

The second warning is to adhere to the basic national policy of opening to the outside world. Adhere to the basic national policy of opening to the outside world, actively promote international cooperation such as the Belt and Road Initiative, support participation in the multilateral trading system, and promote the development of China's foreign trade in a broader, larger and deeper direction. Even if there are some international trade disputes, there is still a lot of room for manoeuvre and adjustment, in order to truly shine in the East, the West and the South. We must adhere to high-quality opening up, pay more attention to resource conservation, environmental protection, scientific and technological innovation, financial cooperation and rights protection, strive to develop advanced manufacturing industries and high-end manufacturing industries, strengthen the evaluation and early warning of countries, regions and industries with high risks in opening up, and enhance the ability of risk prevention and control and the ability to seek advantages and avoid disadvantages, so that opening up will continue to be an important engine for promoting the construction of a powerful socialist modernization country. We must strive to create a credible and responsible image of a big country opening to the outside world, play a leading and exemplary role in building a unified destiny of mankind, and win the trust and support of all countries in the world. In recent years, most countries in the world have low strategic trust in the United States, and most of them have good trade relations with China. In order to maximize their own interests, they will never obey the orders of the United States to participate in the trade war with China. On the contrary, many countries will take advantage of the Sino-US trade dispute to further strengthen trade cooperation with China and seek new business opportunities. The protectionist actions of the United States have also harmed the interests of former allies and aroused their opposition. After the United States decided to impose high tariffs on imported steel and aluminum products, the European Union, Germany, France, Japan, Turkey and other countries criticized this behavior and considered taking countermeasures, resulting in a situation in which many people got help from the road and few people got help from the road.

The third warning is that patriotic enthusiasm needs to be expressed rationally according to law. Whenever there is a dispute over national interests, many people will express their patriotic enthusiasm, which shows that everyone cares about the motherland and loves China, which is worthy of recognition. However, today's China is no longer a poor, weak and bullied China. We must believe that the party and the government are fully intelligent and capable of handling international disputes, turn patriotic enthusiasm into practical actions of scientific and technological invention, hard work and hard study, consciously safeguard the overall situation of reform, development and stability, and help them not to be chaotic. We should recognize the sinister intentions of anti-China forces to confuse China politically and bring down China economically, adhere to the rational expression of patriotic enthusiasm according to law, refuse to participate in anything that is not conducive to the overall situation of social stability, and do nothing that violates national laws. Don't believe the remarks that stimulate national sentiment and provoke national contradictions in Sino-US trade disputes, and create a good social environment for solving Sino-US trade disputes.