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时间:2019年03月25日 05:19:52

Smog is up 65 percent in the western U.S., according to a new study.根据一项新的研究,美国西部烟雾污染上升百分之65。Researchers say it#39;s because of Asian countries#39; emission levels of nitrogen oxides, which have tripled since 1990.研究人员表示,这是因为亚洲国家的氮氧化物排放水平,自1990以来增加了三倍。The findings come from pollution data collected in cities and national parks across the western U.S.这些发现来自美国西部城市和国家公园收集的污染数据。The Asian-made gases travel across the ocean. They#39;ve offset the 50 percent cut in emissions of nitrogen oxides made by the U.S. over the past 25 years. 亚洲排放的气体穿越海洋。它们抵消了过去25年美国氮氧化物排放量削减百分之50。Researchers say a global strategy is necessary in order for the U.S. to meet air quality objectives.研究人员表示,有必要采取全球战略满足美国的空气质量目标。High levels of these nitrogen oxides can be harmful to people and animals.高浓度的这些氮氧化物可能对人和动物有害。译文属。 Article/201703/495703

We may have been physically able to speak从生理上说 我们那时就可以说话了but linguists believe但语言学家认为 it#39;s more likely that the birth of language coincided with语言的产生应该是在五万年前the proliferation of man-made objects around 50,000 years ago.与人造工具广泛流传的时间相同At this time there was an explosion in art and technology.那时艺术和科技空前繁荣We start to see, for the first time in the archaeological record,我们可以看到考古记录上首次出现了lots of different tool types, lots of different implements,各种各样的大量工具 lots of different huts that people lived in各种人类居住的棚屋and so these things seemed to appear rather abruptly,这些东西似乎是突然之间大量涌现suggesting that there was some change in the way we lived.表明人类的生活方式发生了变化Many scientists think that the birth of language很多科学家认为是语言的诞生instigated this cultural boom.带来了那次文化繁荣But without a time machine, we may never know exactly没有时间机器 我们可能永远无法知道when we started to talk.人类开始讲话的确切年代But what we do know is why.但我们能知道说话的原因Mark Pagel believes that language马克·帕杰尔认为语言probably developed as a practical way of defining roles可能是作为定义社会角色的方式产生的and it formed a kind of social glue.并进而成为了社会的黏着剂 Article/201501/352381

栏目简介:;Shanghai Live; focuses on big events in the city and major issues around the world, and presents them in a practical and audience-friendly manner to meet the ever-evolving needs of Shanghai#39;s English-speaking viewers,both local and expatriate.《直播上海英语电台》集中报道城市大事件以及全球热点话题,并以观众喜闻乐见的方式呈现给大家,从而满足上海本地以及上海海外人士的英语需求。 Article/201509/396670

无人驾驶汽车只是大数据时代的开始。由大数据所带来的未来技术和设计将会是什么样子的?Kenneth Cukier的精演讲给我们展现了由大数据给机器学习和人类知识带来的翻天覆地的变化。 Article/201501/350464

栏目介绍:搞笑英语轻松学通过不同的搞笑生活片段来学习日常口语,领域涉及生活的各个方面,让我们既可以学习到地道的口语,还能够爆笑一番。快来看看吧。 Article/201508/394862


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