音标：[ste'mətə] ；

n. （昆虫的）侧单眼, 家系, 家谱( stemma的名词复数 ); 家谱, 血统

pl. of Stemma

Study: One Third of STEM Students in US Change Majors

Most college students in the United States choose their major, or main field of study for their degree, before or during their first year. For Saskia Fagan, making that choice was not easy. Fagan, who is now 31 years old, grew up in Takoma Park, Mary

发表于:2018-12-12 / 阅读(64) / 评论(0)

2018年VOA慢速英语(一)月

卢旺达加强对女童的STEM教育

Rwanda Invests in STEM Education for Girls Yvonne Kevia is an 18-year-old high school student in Rwanda. She wants to become a chemical engineer. She enjoys doing experiments and taking careful notes in her high school laboratory in Kigali, Rwandas c

发表于:2019-01-02 / 阅读(112) / 评论(0)

2017年VOA慢速英语(十二)月

Mother of Boko Haram Leader Speaks Out

A woman who claims to be the mother of a militant leader says she does not know if her son is alive or dead. Abubakar Shekau is the head of the Boko Haram militant group. Boko Haram launched its campaign against Nigerias government in 2009. Nigerian

发表于:2019-01-03 / 阅读(89) / 评论(0)

2018年VOA慢速英语(六)月

SCIENCE IN THE NEWS - Progress Made in Stem Cell Research

SCIENCE IN THE NEWS - Progress Made in Stem Cell Research By Caty Weaver, Jerilyn Watson, ... Broadcast: Tuesday, May 31, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I

发表于:2019-01-09 / 阅读(91) / 评论(0)

科技之光

Stem Cells From Cord Blood May Offer Way to Treat Sick Child

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell

发表于:2019-01-12 / 阅读(124) / 评论(0)

2011年VOA慢速英语(二)月

VOA慢速英语2015 内罗毕的著名Matatu涂鸦又回来了

AS IT IS 2015-02-07 Nairobis Famed Matatu Graffiti Is Back 内罗毕的著名Matatu涂鸦又回来了 For the last 10 years, the Kenyan government banned any painting on matatus --- large public taxis in the capital, Nairobi. The vehicles could only

发表于:2019-01-12 / 阅读(68) / 评论(0)

2015年VOA慢速英语(二)月

Nasal Stem Cells Help to Cure Infant Hearing Loss

Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use

发表于:2019-01-19 / 阅读(116) / 评论(0)

世界各地新闻集锦

英语听力：自然百科老鼠入主印度圣庙

Hi, I'm Patty Kim. Today we are setting our sights on India, a land of deserts and rain forests, modern cities and ancient beliefs. With over a billion people, India is the world's largest democracy, and many say it's a travelers paradise. In truth,

发表于:2019-01-22 / 阅读(98) / 评论(0)

自然百科2009年

VOA常速英语2008年-Adult Stem Cells Show Medical Promise

By Alex Villarreal Washington 28 February 2008 Adult stem cell therapy has successfully treated leukemia and other cancers for years, in the form of bone marrow transplants. A new study in the Journal of the American Medical Association [JAMA] finds

发表于:2019-01-25 / 阅读(256) / 评论(0)

VOA常速英语2008年（二月）

PBS高端访谈:将马里的音乐从战乱中带回来

JUDY WOODRUFF: Now: terror and renewal in West Africa. Just days ago: Boko Haram pledged allegiance to the Islamic State group, raising fears the militants' insurgency in Nigeria could become part of an international conflict. This weekend saw a burs

发表于:2019-01-27 / 阅读(99) / 评论(0)

PBS访谈娱乐系列

新西兰英语 622 Matariki

Today is the beginning of Matariki, the Maori New Year. It is the time of year when the group of stars, The Pleiades, first appears in the sky. When the new moon appears after this, it is the time to celebrate Matariki. It has two meanings: Mata Riki

发表于:2019-01-27 / 阅读(85) / 评论(0)

新西兰英语

60秒科学:Beating Heart Tissue from Stem Cells

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(135) / 评论(0)

60秒科学

Stem Cells in Fat

> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(139) / 评论(0)

科技之光

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(233) / 评论(0)

英语新闻

VOA常速英语2007年-Stem Cell Research Dominates 2007 Medical Field

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(120) / 评论(0)

VOA常速英语2007年（十二月）

Spain names football squad for Olympic Games

MADRID, July 3 (Xinhua) -- Luis Milla, coach of the Spanish football team for the London Olympic Games, named his 22-man preliminary squad for the quadrennial games on Tuesday. The list includes Jordi Alba, Juan Mata and Javi Martinez who formed part

发表于:2019-02-18 / 阅读(85) / 评论(0)

英语新闻

Japan Moves to Stem Rising Yen

Japan's government and the country's central bank took action Thursday to dilute the yen. The Japanese currencys strong standing against the dollar is making exports more expensive, hurting efforts to revive the country's moribund economy. After many

发表于:2019-02-18 / 阅读(103) / 评论(0)

英语新闻

U.S. researchers discover human lung stem cell

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(166) / 评论(0)

英语新闻

学个词Learn a Word 第1520 - stem from

今天我们要学的词是stem from. Stem spelled s-t-e-m, stem; and f-r-o-m, from. Stem from是源自，来源于的意思。The UN said Syrian government forces are responsible for most of the violence stemming from the country's unrest. 联合国表

发表于:2019-02-18 / 阅读(114) / 评论(0)

英语单词荟萃

经济学人:东南亚电商本土优势

E-commerce in South-East Asia 东南亚电商 Home-field advantage 本土优势 The global online-shopping giants may not find it easy to conquer the region 全球的电商巨人可能都难以征服这一地区 TROPICAL rain pounds on the roof of a

发表于:2019-03-09 / 阅读(187) / 评论(0)

经济学人商业系列

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acga

ADLM

airport information desk

amphoteric surface active agent