Has everyone in your classes written to a factory to ask them to stop pouring dirty water into the river or lake nearby ?
你们班是不是有人已写信给工厂要求他们停止向附近的河流或湖泊排放污水？Membrane bioreactor (MBR) was used to treat wastewater from Qingdao Airport to achieve reclamation and reuse of wastewater.
为实现污水的资源化，青岛流亭机场采用以MBR为主体的工艺处理排放污水。Please do not discharge sewage, and please do not damage the source of our life.
请不要再排放污水了，请不要破坏我们的生命之源。When the voltage is switched off, the WFC acting as a water capacitor, discharges on itself.
当电压关闭时，在世界粮食理事会作为水电容，排放污水的问题本身。The report claimed that some suppliers were responsible for polluted water and hazardous gas in surrounding areas.
报告称，一些供应商向周边地区排放污水和有害气体。这些说法无法得到独立消息来源的证实。Many rivers, like the one depicted in the picture, have been terribly polluted by the sewage discharged from the factories.
许多河流像图中描述的那样已经被工厂排放污水可污染到了可怕的程度。People throw rubbish everywhere, the discharge of sewage, the felling of trees, heavily polluted the environment.
人们到处扔垃圾，排放污水，砍伐树木，严重污染了环境。Factories must be stopped from pouring polluted water into rivers and lakes.
必须阻止工厂往河流湖泊中排放污水。This is because people do not care for the environment, throw rubbish, caused by indiscriminate discharge of sewage.
这都是因为人们不爱护环境，乱扔垃圾，乱排放污水造成的。