How many people can say what river or rivers are on the other side of the dikes on which the heavily trafficked Huanhe Expressway was built in the 1980s-the Danshui?
又有多少人分辨得出民國 70 年代興建、車水馬龍的環河南北路堤防，環繞的是淡水河、新店溪、還是基隆河？