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(单词翻译:双击或拖选)
Air pollution
空气污染
A:我听说近地面臭氧,但是你能确切解释一下是什么吗?
B:Yes, it's one of the main air pollutants2. Factories don't emit it directly into the air.
B:是,它一个主要的空气污染物。工厂不把它直接排到大气中。
It's actually formed when nitrogen oxides and VOC emissions3 come into contact with heat and sunlight.
它实际会形成一氧化氮,而且它在与光和热的接触下会释放出VOC。
A: Sorry? What does VOC stand for?
A:对不起?VOC代表什么?
B: Oh, VOCs are 'volatile4 organic compounds'. That's a technical term for solvents5 or other chemicals found in things like paint.
B:哦,VOCs是挥发性有机混合物。这是溶剂方面的一个专业术语,其它的化工品像油漆等也有这种物质。
A: So, what damage does ozone do to the environment?
A:那么,臭氧对环境有什么破坏?
B: Well, it can cause smog, which can affect people's health - especially people with breathing difficulties.
B:哦,臭氧会引起浓雾,影响人们健康,特别是会让人感到呼吸困难。
点击收听单词发音
1 ozone | |
n.臭氧,新鲜空气 | |
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2 pollutants | |
污染物质(尤指工业废物)( pollutant的名词复数 ) | |
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3 emissions | |
排放物( emission的名词复数 ); 散发物(尤指气体) | |
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4 volatile | |
adj.反复无常的,挥发性的,稍纵即逝的,脾气火爆的;n.挥发性物质 | |
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5 solvents | |
溶解的,溶剂 | |
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