Because the Tamsui River is not only a problem for Taipei but also concerns the national image--just as the clean-up of the Han River makes people think of the vitality of South Korea besides being a success for Seoul.
因為淡水河不只是台北市地區的問題，而是關係到國家形象，像漢江整治成功，大家會想到這是韓國的魄力，而不只是漢城的功勞。