With its crumbling city streets, rat-infested subway cars and gridlocked freeways, America's infrastructure has deteriorated beyond repair.

This makes people wonder why the US infrastructure is so poor, and how big is the infrastructure gap between China and the US? In fact, many subways in the United States have repeatedly been unable to operate because of excessive garbage, but this is only a microcosm of the decline of American infrastructure.

To put it even more exaggerated, the water supply system of New Orleans, the United States, has not been repaired and maintained for more than 20 years, which leads to the loss of 50% of every ton of water used by residents, which makes the cost of the United States government completely unaffordable. Editor/Xu Shengpeng