The U.S. tariff increase of #美国加征关税 is essentially a unilateral means of trade protectionism. In the short term, it may protect domestic industries, but in the long run, it will drive up domestic inflation, weaken consumer purchasing power, and exacerbate global supply chain distortions. History has shown that tariff barriers often provoke retaliatory actions from trade partners, creating a vicious cycle that ultimately harms the economic interests of all parties involved. As the world's second-largest economy, China has a complete industrial system and domestic demand market, allowing it to hedge external pressures through diversified cooperation and technological innovation. The real solution should be based on multilateral consultations under the WTO framework, rather than zero-sum games. In the context of globalization, cooperation and win-win outcomes are the sustainable path.