Global pollution is a threat to humanity.
全球污染对人类构成威胁。
It would provide an inexhaustible supply of energy, without pollution or global warming.
聚变将提供永不枯竭的能源，没有污染，也不会造成全球变暖。(也许他太乐观了. .)。
Air pollution is a global issue but it's also lurking right outside your door.
空气污染虽是全球性话题，但同样也潜伏于我们自家周围。
Pollution is a global problem which needs a global response.
污染是一个全球性的问题，需要全球关注。
Air pollution is a global problem.
空气污染是全球性的问题。
Pollution has become a global issue, at great risk to human beings, animals and plants.
污染已成为全球问题，对人类动物，植物有很大危害。
Water pollution from oil substances is another focus of global concern.
水体中油类物质的污染是全球关注的又一焦点。
Global warming has a lot to do with air pollution.
全球变暖与空气污染有很大关系。
The main cause of global warming is human pollution.
全球变暖的主要原因是人为污染。
Air pollution is a global problem.
有关污染，这是个全球性问题。
The main cause of global warming is human pollution.
是的，但全球变暖会使气温上升。
The main cause of global warming is human pollution.
是的，但全球变暖会使气温上升。
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