声强衰减

美国国家公共电台 NPR 'Serial' Subject Adnan Syed Deserves A New Trial, Appeals Court Rules

NOEL KING, HOST: OK. If you listen to the hit podcast Serial, you know the name Adnan Syed. The podcast was about his murder conviction in 2000. But an appeals court in Maryland has backed a decision that vacated his conviction, and Syed might be get

发表于:2019-01-16 / 阅读(51) / 评论(0)

2018年NPR美国国家公共电台3月

美国国家公共电台 NPR A Year After Charlottesville, Not Much Has Changed For Trump

SCOTT SIMON, HOST: A year ago, President Trump's remarks about a violent white nationalist rally in Charlottesville sparked outrage. (SOUNDBITE OF ARCHIVED RECORDING) PRESIDENT DONALD TRUMP: You had a group on one side that was bad, and you had a gro

发表于:2019-01-17 / 阅读(41) / 评论(0)

2018年NPR美国国家公共电台8月

美国科学60秒 SSS 2013-02-07

Adult ants communicate with pheromones, touch and even sound. Now researchers have discovered that developing ants called pupae have their own distinctive calls, which identify their social status within the colony. This finding is in the journal Cur

发表于:2019-01-20 / 阅读(24) / 评论(0)

Scientific American(二)月

美国科学60秒 SSS 2015-05-01

This is scientific American ,60 second science. Im Chris D..ta. Got a minute? In less you have a pair of noise-cancel headphones. Flying can be annoying to the ears. A lot of low-pitch rumbling makes it into the cabin. The problem is ,the wings ,floo

发表于:2019-01-20 / 阅读(128) / 评论(0)

2015年Scientific American(五)月

六级阅读中的逻辑词汇

一篇文章的各个段落之间、各个句子之间都存在一定的逻辑关系，正确理解这样的逻辑关系对于阅读者有着很重要的意义：首先，借助上下文之间的逻辑关系，阅读者能够更好地理解文章大意

发表于:2019-02-13 / 阅读(29) / 评论(0)

大学四六级阅读

科学美国人60秒 SSS 人类回声器原理类似蝙蝠回声

Human Echolocators Use Tricks Similar to Bats Many bats use a system similar to sonar to navigate in the dark. They send out high frequency sound, sometimes as clicks, and get information about their surroundings by the timing and quality of the soun

发表于:2019-02-14 / 阅读(35) / 评论(0)

2018年科学美国人3月

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absurd

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atmospheric pressure method

before anything else

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blowlamps