Everyone says that the environment is a hopeless mess, but the real extent of the pollution still needs investigation. After we understand the extent of the pollution, then we can set long-and short-term goals for improvement.
大家都說環境一團糟，但汙染究竟嚴重到什麼程度，就需要調查，瞭解汙染程度後，再定出長、短期的改進目標。