translation.en: Meanwhile, we've got two trillion dollars -- at a minimum, that we need to expend to even make a dent in the infrastructure, which is currently rated at a D minus.
translation.zh: 按照美国土木工程协会的估计 现在，我们最少需要扩张两万亿美金 如果我们想要在基础建设上有点初步进展的话 现在还是 D- 级别