70/30的分割进一步凸显了挑战：美国必须直面一次根本性的调整 — — 逐渐摆脱对国内需求的过度依赖，并向外部需求争取更多的支持。
The 70/30 split underscores the challenge: the US must face up to a fundamental rebalancing – weaning itself from excessive reliance on internal demand and drawing greater support from external demand.