They feelthe problem every time they drive over a pothole (and they often do: some 27%of urban arterial roads were classified as poor in 2005).

• 开车过坑洞时，人们就可以察觉到这些问题（他们经常会遇到这些事：在2005年，大约27%25的城市动脉被认为状况不佳）。