城市垃圾填埋场渗滤液是城市垃圾在进行卫生填埋处理时，垃圾腐化产生的内源水和一些外来水分形成的液体。
Landfill leachate is composed of liquid coming from putrefaction of municipal solid waste and some external water. It has great potential threat to environments.
大多数物质，如牛奶和水都是反磁体，即他们会排斥外来磁场，这种现象很微弱，在常规条件下是几乎是观察不到的。
Most materials, including milk and water, are diamagnetic, which means they are repelled by external magnetic fields-though this phenomenon is far too subtle to be observed in normal circumstances.
互联网正从外来的事物变成平淡的公用设施，像如电力或自来水一样，而我们从来没有真正意识到。
The Internet went from being something exotic to being boring utility, like mains electricity or running water - and we never really noticed.
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