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听力等级

科学研究   

2023-09-22   Intermediate
Maryn McKenna on Antibiotic Resistance, Part One

Keywords:

Steve: Let's talk about antibiotic resistance and agriculture, because that's such a huge issue. Much more antibiotics goes into agriculture than being administered to people who are sick. M...

史蒂夫:让我们谈谈抗生素耐药性和农业,因为这是一个巨大的问题。用于农业的抗生素比用于病人的抗生素多得多。麦肯纳:这是一个非常非常有趣和纠结的故事。史蒂夫:大部分都是健康的动物。麦肯纳:对。所以当我们谈论击退抗生素耐药性或至少减缓其出现时——...


2023-09-20   Intermediate
Curiosity on Mars, the Mars Science Laboratory

Keywords:

Appell: What was it like being there after all your work? Grotzinger: Well you know, truthfully, it was a lot of other people's work and I, you know, I really get to be a participant as ...

阿佩尔:工作结束后在那里是什么感觉?Grotzinger:你知道,说实话,这是很多其他人的工作,而我,你知道,我真的可以作为一名科学家参与到一个工程奇迹中。你看看这辆漫游车,你看看这艘宇宙飞船,你看到它有多复杂,我认为这一定是真的,没有人能...


2023-09-18   Intermediate
About one of the Hottest Topics in Medicine - Fecal Transplants - Ⅱ

Keywords:

McKenna: The reason that they've always done that is because they figured, that way it's, they're putting the transplant, the liquid, far enough back in the intestinal tract that you're not j...

麦肯纳:他们一直这样做的原因是,他们认为,这样一来,他们会把移植的液体放回肠道足够远的地方,这样你就不会立刻再次失去它。但有趣的是,这确实需要花钱,主要是因为你必须支付医生的时间,而且你必须使用内窥镜检查套件。所以还有另一位非常有趣的胃肠病...


2023-09-18   Video
Biology of SARS-CoV-2 - Vaccination

Keywords:

[NARRATOR:] When you are infected with a virus like SARS-CoV-2, your body gets to work destroying the virus. Your immune system recognizes certain viral proteins, called antigens. Antig...

[旁白:]当您 感染了 SARS-CoV-2,您的身体会 努力消灭病毒。 您的免疫系统识别 某些病毒蛋白, 称为抗原。 抗原触发一个过程 称为免疫反应 其中包括生产 多种类型的免疫细胞 具有不同...


2023-09-16   Intermediate
About one of the Hottest Topics in Medicine - Fecal Transplants - Ⅰ

Keywords:

McKenna: I am going to be writing this column along with Deborah Franklin, another long-time science and medical journalist. We're going to alternate pretty much and this fecal transplants piece is th...

McKenna:我将与另一位资深科学和医学记者 Deborah Franklin 一起撰写本专栏。我们几乎会交替进行,这篇关于粪便移植的文章是重启的第一篇文章。那么粪便移植它们是什么?.粪便移植基于这样一种理解,即我们所有人的肠道中都携带着...


2023-09-16   Video
What Do Alien Civilizations Look Like

Keywords:

An observable universe is a big place that's been around for more than 13 billion years. Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our home ga...

可观测的宇宙是一个很大的地方 这已经存在了 130 多亿年。 多达 2 万亿个星系由 大约 200000 亿颗恒星 围绕着我们的家园星系。 仅在银河系中, 科学家们假设有一些 400 亿颗类地行星 在他们...


2023-09-14   Video
Biology of SARS-CoV-2 - Evolution

Keywords:

SPEAKER 1: The SARS-CoV-2 genome is a single strain of RNA with genes that encode fewer than 30 proteins. This is less than 0.1% of the proteins encoded by the human genome. The viru...

发言者 1: SARS-CoV-2 基因组是 单个菌株 RNA 的基因 编码少于 30 种蛋白质。 这小于 0.1% 的蛋白质 由人类基因组编码。 该病毒的基因组是 由大约 30,000 个 称为...


2023-09-13   Pre-Intermediate
How Babies Learn, When, and Even In What Position, Part Two

Keywords:

The World Health Organization says iron deficiency is the most-common micronutrient disorder worldwide. WHO officials also say iron deficiency is a leading cause of anemia. About two billion people su...

世界卫生组织表示,缺铁是全球最常见的微量营养素紊乱。世界卫生组织官员还说,铁缺乏是贫血的主要原因。大约有20亿人患有这种疾病,据信40%的学龄前儿童贫血。20%的孕产妇死亡与低铁水平有关。关于低出生体重婴儿的报告发表在《儿科学》杂志上。专家...


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