Titan, with a thick atmosphere and a bizarro-world form of weather featuring toxic winds and hydrocarbon rain, is home to a mix of complex chemistry, complete with organic molecules.

土卫六拥有浓厚的大气层和疯狂世界似的气候特征：有毒的风和由碳氢化合物组成的雨水。同时，土卫六海充满着各种复杂的化学成份和有机分子。

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Fireworks can rain down toxic chemicals Photo: getty.

放焰火会散落大量有毒的化学物质。

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"When the toxic cloud falls down, it ACTS like acid rain, damaging plants and monuments," Ribeiro added.

“当毒云落下，它就像酸雨一样，破坏着植物和古迹，”里贝罗补充说。

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Most of the data comes from the industrialized world. Not surprisingly, burning fossil fuels for transportation and electrical generation top the list for their contributions to climate change, acid rain and toxic pollution.

VOA: standard.2010.06.04

Strip mines, mountaintop removal, polluted watersheds, Black Lung, mercury poisoning, airborne lead and other toxic pollutants, and acid rain.

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