单词：immune pregnancy test
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The plague is most famous for killing tens of millions of people all over Europe in the 1300s. Plague is caused by the bacteria Yersinia pestis. And th
Scientific American(八)月
This is scientific American sixty seconds science. I'm Ian Chant. Got a minute? Having a kid changes everything from your sleep schedule to the statues of that formerly spare room. The stable of bacteria that living in women's gut is also transformed
Scientific American(八)月
He is immune to chickenpox, he had it as a child. 他对水痘免疫，他小时候就得过了。 immune表示免疫的，immune system就是指身体的免疫系统；而对...有免疫力就用be immune to...这个词组。
蒋健棠英语实用句子
Serena Williams Says Frequent Drug Testing Is 'Discrimination' This is What's Trending Today... American tennis player Serena Williams is not pleased about getting more drug tests than her competitors. Williams expressed her opinion Tuesday after rec
2018年VOA慢速英语(七)月
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Barbara Klein. This week, we talk about a sickness called lupus and other autoimmune diseases. Autoimmune diseases affect the immune system the body's
VOA慢速英语2009年（四）月
患者：我这两天阴道出血并伴有下腹疼痛。 Patient: I have had some vaginal bleeding for 2 days, together with some pain in the lower abdomen. 护士：你月经流量怎么样？上次月经是什么时候？ Nurse: What was the amount of bleeding? When was your last period?
英文语法词汇
AS IT IS 2016-08-25 Zika Could Affect Adult Brains, Says New Study 新研究表明:塞卡病毒或影响成人大脑 New research suggests the Zika virus may damage some cells in adult brains. Until now, scientists mainly worried about Zikas effects
2016年VOA慢速英语(八)月
Researchers went to the U.S. Capitol Thursday to plead for more funding so that a breast cancer vaccine could be tested on humans. The doctors from Cleveland Clinic in Ohio say their vaccine has prevented cancer in laboratory mice, but they are unabl
VOA标准英语2010年(七)月
New Malaria Vaccine Passes Safety Test The fight against malaria may have taken a promising step forward with the latest tests of a new kind of vaccine, which aims to keep people healthy and prevent the infection from spreading. Most malaria vaccines
VOA标准英语2011年(九月)
Researchers have developed an improved version of the smallpox vaccine that can be combined with a vaccine against anthrax. The dual vaccine represents a significant scientific achievement as well as a possible improved defense against biological att
VOA标准英语2010年(十)月
Study: Immune System Weakens in Space During the final flight of the US space shuttle Atlantis in the summer of 2011, one of the most important pieces of scientific cargo on board was a medical experiment designed to test how the human immune system
VOA标准英语2013年(四月)
Voice 1 Welcome to Spotlight. Im Ryan Geertsma. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Since 1981, more than 30 million
环球英语 Spotlight
今天我们要学的词是hunch。 Hunch, 直觉。I have a hunch that he won't show up, 我的直觉告诉我他不会来。His reaction reinforced my hunch, 他的反应进一步加深了我的直觉。Call it a hunch, but I am sure he was lying, 也
英语每日一词
They are close now, but it's taken the best part of three years for Rachael Dobson to recover from postnatal depression that was so severe it might have ended in tragedy. She wanted little to do with Andreas when he was born. The smiles were for the
英伦广角
By Phuong Tran Dakar 25 April 2008 What started out as Africa Malaria Day was being observed worldwide for the first time on Friday. Health organizations have long said that most of the one million deaths every year attributed to malaria happen in Af
VOA常速英语2008年（四月）
Small kits are now available similar to pregnancy tests that can determine whether a person is infected with HIV, the AIDS virus. But the tests can give a false positive reading if used incorrectly, possibly dealing an emotional or psychological blow
VOA标准英语2010年(七)月
今天我们要学的词是immune。Immune, 的意思是免疫的，比如，immune system就是指免疫系统， immune disease则是免疫系统疾病。Immune还可以指免除的,不受影响的. Apple's OS X, which has long been considered immu
英语单词荟萃
Developing countries in Africa are bracing for serious setbacks in their economies. One of the countries that may feel the effects of the downturn more acutely than others is Kenya, which suffered months of political unrest earlier this year. VOA Co
VOA标准英语2008年（十月）
今天我们要学的词是hunch。 Hunch, 直觉。I have a hunch that he won't show up, 我的直觉告诉我他不会来。His reaction reinforced my hunch, 他的反应进一步加深了我的直觉。Call it a hunch, but I am sure he was lying, 也
英语单词荟萃
A few minutes can feel like forever when you're waiting on the results of a pregnancy test. But in that brief time, you're witnessing the power of the scientific method. That one little stick lets you ask a question, perform a controlled experiment,
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