共有 813 条搜索结果
    时长:4.0分钟 · 语速:139wpm
    来源:刘立军 · 2020-05-13
    播放:4132次
    Why Health Experts Aren't Warning about Coronavirus in Food
    时长:3.0分钟 · 语速:134wpm
    来源:刘立军 · 2020-07-13
    播放:2394次
    Will temperature checks make the workplace safer?
    时长:5.8分钟 · 语速:118wpm
    来源:刘立军 · 2020-07-13
    播放:2751次
    Two no-cost ways that can help you improve your learning
    时长:2.6分钟 · 语速:148wpm
    来源:刘立军 · 2020-07-13
    播放:2739次
    People who spend at least two hours a week amid nature are more likely to report good health and psychological well-being.
    时长:2.0分钟 · 语速:161wpm
    来源:刘立军 · 2020-07-13
    播放:2720次
    Researchers have come up with a method that might fast-track food detection. 
    时长:8.4分钟 · 语速:117wpm
    来源:刘立军 · 2020-07-17
    播放:1894次
    Students want the schools to return part of the money they paid for tuition, meal plans and housing costs
    时长:3.0分钟 · 语速:114wpm
    来源:刘立军 · 2020-07-27
    播放:1614次
    A full recovery will take time.
    时长:1.9分钟 · 语速:122wpm
    来源:刘立军 · 2020-08-04
    播放:1703次
    Researchers trained a program to detect when a smile is genuine.
    时长:2.7分钟 · 语速:123wpm
    来源:刘立军 · 2020-08-04
    播放:1871次
    Laughter can be highly contagious.
    时长:10.2分钟 · 语速:96wpm
    来源:刘立军 · 2020-08-04
    播放:1778次
    Today, grab your poles and bait. We are going fishing!
    时长:5.1分钟 · 语速:129wpm
    来源:刘立军 · 2020-08-12
    播放:18411次
      时长:3.8分钟 · 语速:141wpm
      来源:刘立军 · 2020-08-13
      播放:2827次
        时长:3.0分钟 · 语速:132wpm
        来源:刘立军 · 2020-08-13
        播放:2981次
          时长:3.0分钟 · 语速:151wpm
          来源:互联网 · 2020-09-09
          播放:578次
          How Future Blood Shortages Could Be Solved in the Lab