美中峰會：全球權力新重心浮現

The U.S.-China summit in Washington coincided with the U.N. General Assembly's leaders' week, highlighting a shift in global power dynamics toward direct engagement between the world's two most powerful leaders, rather than multilateral institutions. The summit focused on three key issues: extending the tariff truce, establishing an AI dialogue mechanism, and Taiwan. The U.S. agreed to extend the truce by two months pending evaluation of Chinese investment barriers, while both sides established a hotline for AI-related national security incidents. The U.S. maintains strict AI export controls to preserve its competitive advantage, and delayed a $14 billion Taiwan arms sale, potentially splitting the amount. The two nations remain deeply distrustful, with cooperation limited by their realist, transactional approaches to foreign policy.