德国总理默茨：对全球公共债务水平的上升感到担忧，这不仅仅是欧洲的问题，也包括美国。

Core Viewpoint - German Chancellor Merz expresses concern over the rising levels of global public debt, indicating that this issue is not limited to Europe but also includes the United States [1] Group 1 - The increase in global public debt is a significant concern for economic stability [1] - The issue of rising debt levels is a shared challenge between Europe and the United States [1]