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白昼变长使得地球上的氧气增加Earth's Longer Days May Have Produced More Oxygen刘立军供稿TRANSCRIPTA group of scientists has proposed a new theory about how Earth's atmosphere got its oxygen: The planet slowed down and d...

发布时间：2021-09-01

音频资源练习 | 酷热高温致中东大规模停电

酷热高温致中东大规模停电Extreme heat has caused massiveblackoutsin the Middle East刘立军供稿TRANSCRIPTAnd I’m Ailsa Chang in Los Angeles.CHANG: High heat is visibly affecting athletes at the Tokyo Olympics. Meanwhile...

发布时间：2021-08-25

音频资源练习 | 联合国教科文组织考虑把澳大利亚大堡礁列为濒危世界遗产

联合国教科文组织考虑把澳大利亚大堡礁列为濒危世界遗产UNESCOis considering listing the Great Barrier Reef in Australia as an endangered world heritage sites刘立军供稿TRANSCRIPTHello, this is Danielle Jalowiecka with the BBC News.The...

发布时间：2021-08-18

音频资源练习 | 如何地道地表达“从头开始”

How to use the expression “ from scratch”如何地道地表达“从头开始”刘立军供稿TRANSCRIPTAnd now, Words and Their Stories, from VOA Learning English.Some people get great joy and satisfaction from doing things by themse...

发布时间：2021-08-11

音频资源练习 | 森林变得更年轻也更矮

森林变得更年轻也更矮Forests are getting younger and shorter刘立军供稿TRANSCRIPTThis is Scientific American's 60-second Science, I'm Annie Sneed.They give us paper and fuel, as well as vital ecological services - li...

发布时间：2021-08-04

音频资源练习 | 交通量减少令动物欢喜

交通量减少令动物欢喜Less traffic makes the animals happy刘立军供稿TRANSCRIPTThis is Scientific American's 60-second Science, I'm Julia Rosen.Don't worry about why the chicken crossed the road - the bigger question ...

发布时间：2021-07-28

音频资源练习 | 香港教师打破女性最快登顶珠峰世界记录

香港教师打破女性最快登顶珠峰世界记录A Hong Kong teacher has broken the world record for the fastest woman to reach the summit of Mount Everest燕山大学刘立军供稿TRANSCRIPTThis is VOA News. Via remote, I'm Marissa Melton. Brazi...

发布时间：2021-07-22

音频资源练习 | CDC发布最新冠状病毒防控指南

CDC发布最新冠状病毒防控指南CDC releases new coronavirus prevention and control guidance刘立军供稿TRANSCRIPTWashing hands, yes. Disinfecting everything, not so much. That's the latest guidance from the U.S. Centers fo...

发布时间：2021-07-22

音频资源练习 | 美国12岁青少年开始接种疫苗

美国12岁青少年开始接种疫苗U.S. authorized vaccines for use in children as young as 12刘立军供稿TRANSCRIPTThis is VOA News. Reporting by remote, I'm Joe Ramsey. British health officials said Friday the rollout of COVI...

发布时间：2021-07-22

音频资源练习 | 如何使用介词 between 和 among

如何使用介词between和amongHow to use the prepositions "between" and "among"刘立军供稿TRANSCRIPTQuestion:Akira writes,When I learned about prepositions in junior high school about 70 years ago, it was taught that...

发布时间：2021-07-22

音频资源练习 | 硬化道路有助于减排

Hardening the roads helps to save energy硬化道路有助于减排刘立军供稿TRANSCRIPTThis is Scientific American's 60-second Science, I'm Christopher Intagliata.When you walk on a sandy beach, it takes more energy than s...

发布时间：2021-07-08

音频资源练习 | 宇航员

Astronauts宇航员燕山大学刘立军供稿TRANSCRIPTAs more companies start selling tickets to travel into space, people are asking: Who gets to call themselves an astronaut?It is no longer an easy question to answer. ...

发布时间：2021-06-30

音频资源练习 | 误导地区性情感分析的3个单词

Three words that mislead regional sentiment analysis误导地区性情感分析的3个单词燕山大学刘立军供稿TRANSCRIPTThis is Scientific American's 60-second Science. I'm Karen Hopkin.You can tell a lot about people's general state...

发布时间：2021-06-16

音频资源练习 | 印度单日新增新冠肺炎死亡人数首破4千

India recorded for the first time more than 4,000 coronavirusdeaths in one day 印度单日新增新冠肺炎死亡人数首破4千燕山大学刘立军供稿TRANSCRIPTBBC News. Hello, I'm Tom Watts. India has recorded for the first time more than 4,...

发布时间：2021-06-10

音频资源练习 | 美国总统拜登贺完成疫苗接种2亿剂

Joe Biden celebratedthe delivery of 200 million vaccinationsin the US美国总统拜登贺完成疫苗接种2亿剂燕山大学刘立军供稿TRANSCRIPTThis is AP News Minute.President Joe Biden is toutinga new milestone in the country's effort t...

发布时间：2021-06-10

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