美国有线新闻 CNN 美国疾控中心调查电子烟与肺病是否相关

 

From California to Connecticut, at least 15 U.S. states have identified dozens of cases of lung disease and they might be connected to vaping. It's another term for inhaling¹ vapor² from electronic cigarettes. Health officials in several states say they're not sure if vaping definitively³ caused more than 120 people nationwide to get sick. But the U.S. Centers for Disease Control is investigating. Some of the patients with lung disease have been in the hospital for weeks. Their symptoms include fevers, dizziness, chest pain, coughing, stomach problems and having trouble breathing.

States are not required to report lung diseases related to vaping, so experts say the issue could be difficult to keep track of. But in Wisconsin, the state with the most confirmed and suspected cases, a respiratory disease specialist said they involved otherwise healthy young people who had severe respiratory illnesses and no signs of infection. Wisconsin's government says all of the patients had said they vaped before they were hospitalized but what's not known is exactly what products they vaped. It's possible but not certain that they were mixed with other chemicals. E-cigarettes are relatively⁴ new and health experts don't know yet what kinds of short and long term risks they carry.

1 inhaling   

v.吸入( inhale的现在分词 )

参考例句：

• He was treated for the effects of inhaling smoke. 他因吸入烟尘而接受治疗。 来自辞典例句
• The long-term effects of inhaling contaminated air is unknown. 长期吸入被污染空气的影响还无从知晓。 来自互联网

2 vapor   

n.蒸汽，雾气

参考例句：

• The cold wind condenses vapor into rain.冷风使水蒸气凝结成雨。
• This new machine sometimes transpires a lot of hot vapor.这部机器有时排出大量的热气。

3 definitively   

adv.决定性地，最后地

参考例句：

• None of the three super-states could be definitively conquered even by the other two in combination. 三个超级国家中的任何一国都不可能被任何两国的联盟所绝对打败。 来自英汉文学
• Therefore, nothing can ever be definitively proved with a photograph. 因此，没有什么可以明确了一张照片。 来自互联网

4 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。