A: One of the main problems with the revitalization of the Tanshui River is that Taipei County's sewer systems used to be very inadequate and industrial effluents and domestic sewage were discharged into the river without any treatment.
答：淡水河整治其中一個關鍵是以往北縣污水下水道很差，工業廢水和家庭廢水都未經處理就排到淡水河。