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听力等级

科学研究   

2025-01-30   Intermediate
How Shazam IDs Over 23,000 Songs Each Minute

Keywords:

- [Narrator] More than 23,000 songs are Shazamed every minute in the world, but how does it identify the music around you, after recording just seconds of audio from your phone? Shazam h...

- [旁白] 超过 23,000 首歌曲 在世界上每分钟都被 Shazamed, 但是它如何识别 你身边的音乐, 录制仅几秒钟后 来自您手机的音频? Shazam 必须创建一个 独特的音频指纹, 你所听到...


2025-01-30   Video
What Would Happen If All Cars Were Indestructible

Keywords:

Imagine if all cars behaved like this. Instead of falling apart after a single crash, what if we all had cars that were indestructible. Would there be fewer fatalities caused by car accidents? W...

想象一下,如果所有汽车都这样。 与其在一次碰撞后分崩离析,不如我们都拥有坚不可摧的汽车。 车祸造成的死亡人数会减少吗?坚不可摧的汽车是由什么制成的?这最终会是一件坏事吗? 这就是假设,如果所有汽车都是坚不可摧的,会发生什么...


2025-01-28   Video
What If Another Sun Entered Our Solar System

Keywords:

With the vastness of the Universe, everything in it seems so spread out. But some objects are closer than you might realize. Every now and then, a random interstellar asteroid passes through the...

在浩瀚无垠的宇宙中,其中的一切都显得如此分散。 但有些天体比您意识到的更近。 时不时地,一颗随机的星际小行星穿过奥尔特云,奥尔特云是位于我们太阳系最边缘的冰冷碎片墙。 但是,如果一颗流氓星毫不客气地穿过 Oort 云呢? ...


2025-01-27   Pre-Intermediate
Your Body Posture Can Change Your Brain, Part 2

Keywords:

The researchers found that two minutes of high-power posing lowered the stress hormone cortisol and increased levels of testosterone. Also, all the subjects in the high-power pose group said they felt...

研究人员发现,两分钟的高功率姿势降低了压力荷尔蒙皮质醇并增加了睾丸激素水平。此外,高功率姿势组中的所有受试者都表示,他们在姿势后感到强大且处于控制之中。他们在实验过程中也冒了更多的风险。 低功率姿势起到了相反的作用——它提高了皮质醇水平并...


2025-01-25   Pre-Intermediate
Your Body Posture Can Change Your Brain, Part 1

Keywords:

We have known for a long time that our body posture – the way we hold our bodies when we sit, stand or walk -- tells the world a lot about us. People who walk with their heads bent down can appear un...

我们很早就知道,我们的身体姿势——我们坐着、站着或走着时握住身体的方式——可以向世界透露很多关于我们的信息。 低着头走路的人可能会显得对自己不确定或不自信。而肩膀向后、昂首挺胸的人则显得自信。 但是我们的身体姿势会影响我们看待自己的方式...


2025-01-22   Video
The Mind-Blowing Density of Neutron Stars

Keywords:

Stars with a much larger mass than our Sun burn out after just a few million years; in a gigantic explosion known as a supernova. Moving at the speed of light, millions of tons of plasma, neutrinos...

质量比太阳大得多的恒星在短短几百万年后就会燃烧殆尽;在一场被称为超新星的巨大爆炸中。 以光速移动,数百万吨等离子体、中微子和大量光从这次爆炸中喷出。 但还是留下了一些东西。 这东西到底是什么?如果我们的太阳是其中之一,会发...


2025-01-18   Video
What If a Black Hole Deleted the Universe

Keywords:

They are massive, and extremely dense. They rip apart anything and everything that gets close to them. We can't see black holes. But we know they have the destructive power to wipe everything...

它们体积巨大,密度极高。 他们撕碎了靠近他们的任何东西。 我们看不到黑洞。 但我们知道他们有破坏力,可以抹去一切。 这是 WHAT IF,如果黑洞删除了宇宙会发生什么。 在我们进入黑洞抹去宇宙的部分之前,让我们...


2025-01-17   Pre-Intermediate
Pregnant Stingray Offers Rare Lesson of Biology

Keywords:

Charlotte has spent much of her life in captivity at a non-profit aquarium in North Carolina's Appalachian Mountains. She is an ocean animal called a round stingray. She is about 3,700 kilometers fro...

Charlotte 一生中的大部分时间都在北卡罗来纳州阿巴拉契亚山脉的一家非营利性水族馆中度过。她是一种被称为圆黄貂鱼的海洋动物。 她距离南加州太平洋的自然栖息地约 3,700 公里。而且她至少有八年没有与同物种的雄性同住了。 但夏洛特...


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