在校园内不准乱丢废物 No littering on the campus
在废物 in the waste of
在未来的废物 in the waste of future
在临时医疗废物 Between temporary medical waste
在工地把废物分类 on-site sorting of waste
我们需要接受这个事实，在地球上的大部分地区，很少或根本没有处理的废物将有充分的理由用于农业。
We need to accept that fact across much of the planet, so waste with little or no treatment will be used in agriculture for good reason.
根据该公司副总经理 Fiona Qian 的说法，这种做法成本高说明一些炼油厂仍然在往垃圾掩埋场排放有毒废物。
According to Fiona Qian, the firm's deputy manager, the high cost of doing this means some refineries are still dumping toxic waste in landfills.
曼彻斯特大学的一项研究计算了二氧化碳（造成气候变化的主要温室气体）在微波炉生产的每个阶段的排放量，从产品制造到废物处理。
A study by the University of Manchester calculated the emissions of CO2—the main greenhouse gas responsible for climate change—at every stage of microwaves, from manufacture to waste disposal.
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