Do you give money to him » 你会给他钱 the pollution in big cities » 大城市中的污染 Their class mates all look after them » 他们的所有同学的照顾他们 ..
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作者指出,在中国,尤其是在像北京等大城市,空气中的粒子污染物气溶胶溶度的不断上升,是由大量化石燃料燃烧造成的。
The authors say that increased levels of aerosols — particles of pollution in the air above China — are caused by increasing fossil fuel consumption, particularly in big cities like Beijing.
在一项研究中,研究人员调查了南韩7大城市中超过4000宗的自杀事件,发现颗粒污染中的尖刺物提高自杀的可能性多达10%。
In one study, researchers examined more than 4, 000 suicides in seven major cities in South Korea. They found that spikes in particle pollution upped suicide risk by as much as 10 percent.
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