美中元首在白宫的会晤象征意义大于实质成果，未达成重大协议，反映出川普对前期准备的抗拒及贸易战后的经济僵局。然而，峰会外交维持了贸易休战与双方沟通管道，在当前全球秩序动荡的战略过渡期中，至少为扩大争端的两国争取到宝贵的时间与暂时的稳定。

当前美中关系仅建立在脆弱的贸易休战与相互经济脆弱性之上，双方正加速降低自身弱点并扩大筹码。这种经济僵局绝非长久的战略平衡，双边谈判亦显失衡，北京在出口管制与农产品采购上的让步随时可逆，而中国因内部经济挑战寻求平静，其本质是争取缓冲时间而非达成最终和解。

真正的考验在于谁能更有效地利用这段喘息空间。北京正借机积累实力并降低对外依赖，若华盛顿缺乏可信威慑与同盟支持，一味将峰会本身视为成就而忽视强化供应链、前线军事部署及盟友安全保障，将可能向中国释放错误信号，最终在长期的战略竞争中落败。

The US-China summit at the White House was heavy on symbolism but thin on substance, yielding no major breakthroughs and reflecting Donald Trump's aversion to preparation alongside the post-trade-war economic stalemate. Nevertheless, leader-level engagement preserves the trade truce and essential diplomatic channels, buying critical time and temporary stability amidst a volatile global strategic interregnum.

Bilateral relations currently hinge on a fragile truce driven by mutual economic vulnerability rather than genuine détente, as both powers race to reduce reliance and build leverage. This economic standoff is not a stable equilibrium, and current bargaining remains asymmetrical; China's tactical concessions can be reversed overnight, meaning Beijing's push for calm is merely a maneuver to gain time rather than settle fundamental disputes.

The crucial question moving forward is which power will capitalize more effectively on the breathing room created by the summit. While Beijing seeks time to accumulate leverage and decrease dependence, Washington risks projecting weakness without credible deterrence and alliance coordination; failing to use this reprieve to fortify supply chains and reassure Asian allies will cost the United States in the long-term competition.