音标：[-bai'ɔtik] ；

a. [动]窃食共生的,靠偷取异种动物(的食物)为生的

北师大版高中英语模块2--Unit 4 Cyberspace Les1-2

[00:00.00]it is clear that we are going to see a huge [00:03.36]growth in shopping on the Internet. [00:06.46]She also believes that,in the future, [00:08.73]we will get entertainment from the Net [00:11.08]and that television will probably disappear

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北师大版高中英语模块2

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新标准初中英语七年级下(2013版)

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By Carol Pearson Washington 28 February 2007 watch Antibiotic Resistance report Penicillin and Erythromycin are examples of antibiotics that used to be one-time miracle cures. These drugs and other antibiotics are now less effective because bacteria

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2007年VOA标准英语（二月）

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STEVE INSKEEP, HOST: This year Americans will spend more than $2 billion on probiotics, supplements aimed at boosting what are called good bacteria inside us. One part of the market that's growing rapidly is probiotics for babies and kids. Here's NPR

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2018年NPR美国国家公共电台5月

60秒科学:Do Rainforests Create Rain?

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

发表于:2019-01-02 / 阅读(224) / 评论(0)

60秒科学

SSS 2009-05-07

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

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Scientific American(五)月

美国国家公共电台 NPR Probiotic Bacteria Could Protect Newborns From Deadly Infection

ROBERT SIEGEL, HOST: Now some good news, especially for babies around the world. Scientists in the U.S. and India have found an inexpensive treatment for a common infection. It could save hundreds of thousands of newborns each year. The treatment com

发表于:2019-01-16 / 阅读(194) / 评论(0)

2017年NPR美国国家公共电台8月

美国国家公共电台 NPR Could Probiotics Protect Kids From A Downside Of Antibiotics?

RACHEL MARTIN, HOST: Go online, walk through any health store or supermarket, and you'll find all kinds of products being sold as probiotics. They're being promoted for all kinds of things - preventing upset stomachs, boosting the immune system, figh

发表于:2019-01-16 / 阅读(165) / 评论(0)

2017年NPR美国国家公共电台12月

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Beginners. Black, red, green, light blue, silver, orange, swords, lazers, helmets, shields, flying machines, underwater vehicles. The list could go on. What do these words refer to? Bionicles. They are a type of lego. You can buy them in boxes to put

发表于:2019-01-28 / 阅读(199) / 评论(0)

英语博客 A cup of English

专家:益生菌酸奶并非有益肠道健康

Probiotic yoghurt drinks and supplements dont live up to their promises, according to an EU watchdog. They claim to boost your immune system and help digestion. It concluded there is no scientific proof that products such as Yakult have any health be

发表于:2019-02-04 / 阅读(165) / 评论(0)

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音乐咖啡厅

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agathidium (microceble) klapperichi

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alfalfone

anticyclonic wind sheer