The third key polluting element affecting the Shing Mun River was waste water discharged from dozens of unsewered villages in the rivers catchment area.是什么意思_The third key polluting element affecting the Shing Mun River was waste water discharged from dozens of unsewered villages in the rivers catchment area.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句