共有 801 条搜索结果
    The Secret of Masks口罩的秘密燕山大学 刘立军 供稿TRANSCRIPTFace-masks and covid-19: Helpful humidityAs well as filtering air, face-masks may boost the immune system.Face-masks help reduce the spread of SARS-COV-2, ...
    发布时间:2021-05-19
    美国公司推出只做重活机器人燕山大学 刘立军 供稿TRANSCRIPTThe American robotics company Boston Dynamics recently made public a new robot called Stretch. It is designed to do only one job: to move containers, or boxes, in lar...
    发布时间:2021-05-11
    猫能感染新冠病毒吗?燕山大学 刘立军 供稿TRANSCRIPTThis is Scientific American's 60-second Science, I'm Wayt Gibbs.The COVID-19 pandemic has a lot of people stuck at home with their cats - which raises some obvious quest...
    发布时间:2021-04-26
    众多日本国民反对举办东京奥运会燕山大学刘立军 供稿TRANSCRIPTA majority of Japanese people are opposed to holding the Tokyo Olympic Games this year due to concerns over the global health crisis. As ReutersBrian Wood reports, t...
    发布时间:2021-04-19
    历史上首个举办夏季和冬季奥运会的城市燕山大学刘立军 供稿TRANSCRIPTTo date, how many cities have hosted both the summer and winter Olympic games? Five, three, one, or none. No single city has hosted both seasonal Olympics before ...
    发布时间:2021-04-12
    可以不用还助学贷款了?燕山大学刘立军 供稿TRANSCRIPTIs student-loan forgiveness unforgivable in Congress?Even before taking office, president-elect Joe Biden is already facing a political storm among his ideologically div...
    发布时间:2021-04-07
    拜登停建特朗普边境墙燕山大学 刘立军 供稿【TRANSCRIPT】This is VOA news. Via remote, I'm Marissa Melton. U.S. President Joe Biden signed executive orders Tuesday to continue dismantlingformer President Donald Trump's restr...
    发布时间:2021-03-30
    我们如何记录2020年燕山大学 刘立军 供稿【TRANSCRIPT】JUDY WOODRUFF: No matter what age you are, it has undeniably been a year of many firsts. Between COVID and the election of the first woman vice president, 2020 will b...
    发布时间:2021-03-24
    特朗普告别演讲燕山大学 刘立军 供稿【TRANSCRIPT】Hello, I'm Chris Barrow with the BBC News. Donald Trump has called on Americans to pray for the incoming administration. But in his farewell message, the President did no...
    发布时间:2021-03-12
    世卫专家走访武汉医院燕山大学 刘立军 供稿【TRANSCRIPT】Hello, I'm David Harper with BBC News. The World Health Organization has criticized the European Union's announcement that it will bring in export controls on vaccines...
    发布时间:2021-03-12
    AP News一分钟新闻:科学将走在拜登政府的前列燕山大学 刘立军 供稿【TRANSCRIPT】This isAPNews Minute.US President-elect Joe Biden says "science will always be at the forefront" of his administration. Biden, who introduced his scienc...
    发布时间:2021-03-10
    BBC新闻:拜登签署行政命令强制戴口罩燕山大学 刘立军 供稿【TRANSCRIPT】BBC news with Aileen McHugh. President Joe Biden has signed executive orders covering his administration’s approach to Covid-19. He’s made mask-wearing in the...
    发布时间:2021-03-09
    PBS高端访谈:美国年轻人对新总统的期望燕山大学 刘立军 供稿【TRANSCRIPT】JUDY WOODRUFF: So, how does this historic inauguration look to young people? Our Student Reporting Labs reached out to our network of high school journalism ...
    发布时间:2021-03-02
    VOA常速:2021年美国总统就职典礼燕山大学 刘立军 供稿【TRANSCRIPT】On January 20th, Joseph Robinette Biden Jr. will be sworn in as the 46th President of the United States of America. Once inaugurated, he will be, at 78 years ...
    发布时间:2021-02-23
    VOA慢速:美国批准空中无人机配送服务燕山大学 刘立军 供稿【TRANSCRIPT】The U.S. Federal Aviation Administration (FAA) recently said it is issuing long-awaited rules that permit small dronesto fly at night and over people. Drones,...
    发布时间:2021-02-01