联邦“债务上限”从来都不是一个固定架构，并且在压力之下它已经变成了一种软性的“天花悬挂系统”好让政府可以尽可能多地借钱。
The federal “debt limit” was never a firm construct, and under pressure it became a squishy “ceiling suspension” that allows the government to borrow as much as it wants.