脱氧土霉素

【1+1英文】 Angela:

发表于:2018-11-27 / 阅读(226) / 评论(0) 分类 英语口语1+1

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

发表于:2018-12-16 / 阅读(94) / 评论(0) 分类 2007年VOA标准英语(二月)

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

发表于:2018-12-17 / 阅读(71) / 评论(0) 分类 2018年NPR美国国家公共电台5月

John Keats (1795 - 1821) My heart aches, and a drowsy numbness pains My sense, as though of hemlock I had drunk, Or emptied some dull opiate to the drains One minute past, and Lethe-wards had sunk: Tis not through envy of thy happy lot, But being to

发表于:2019-01-02 / 阅读(134) / 评论(0) 分类 英语诗歌

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(145) / 评论(0) 分类 60秒科学

The Pot Calling the Kettle Black I have spent a lot of time and effort,stated King Hui of the state of Liang,on governing my country.When there is a bad harvest in Henei,north of the Yellow River,I evacuate the people there to Hedong,east

发表于:2019-01-06 / 阅读(126) / 评论(0) 分类 趣味英语

DEVELOPMENT REPORT – March 18, 2002: Pot-in-Pot Cooling Device By Jill Moss This is the VOA Special English Development Report. In many developing countries, it is difficult to keep food cool. Most

发表于:2019-01-06 / 阅读(122) / 评论(0) 分类 农业与发展

Sweeten the pot The cards are stacked against you 美国人最普遍的纸牌游戏就是扑克,扑克牌游戏就像牛仔裤一样具有美国特色。那末,扑克牌游戏是怎么玩的呢?很简

发表于:2019-01-06 / 阅读(146) / 评论(0) 分类 美国习惯用语

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

发表于:2019-01-08 / 阅读(103) / 评论(0) 分类 Scientific American(五)月

[ti:UNIT 7 Know Our World Coming! Lesson 49: Let's Learn Geography!] [0:00.291]UNIT 7 [0:02.469]Lessons 49~56 Lessons 49~56 [0:05.445]Know Our World [0:07.187]You Will Learn 你会学到 [0:08.930]Functions 功能 [0:10.018]Talking About Numbers 谈论

发表于:2019-01-09 / 阅读(278) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

By Jim Malone Washington 02 January 2007 State Funeral service at the Washington National Cathedral for former President Gerald R. Ford, 2 Jan. 2007 Official Washington bid farewell to former President Gerald Ford on Tuesday. Mr. Ford, the 38th pres

发表于:2019-01-13 / 阅读(169) / 评论(0) 分类 2007年VOA标准英语(一月)

Russian President Dmitri Medvedev has signed decrees granting formal recognition to the Georgian breakaway regions of Abkhazia and South Ossetia. But VOA Moscow correspondent Peter Fedynsky reports analysts say the move could promote separatism in R

发表于:2019-01-13 / 阅读(79) / 评论(0) 分类 VOA标准英语2008年(八月)

The United Nations is appealing for more than $58.5 million to provide emergency assistance to tens of thousands of people affected by the crisis in Georgia over the next six months. Aid agencies report their biggest problem remains one of access. L

发表于:2019-01-13 / 阅读(101) / 评论(0) 分类 VOA标准英语2008年(八月)

Geophysicist Probes Ocean's Secrets Today, Pitman is a distinguished professor of geophysics at Columbia University, and the recipient of many of his fields most coveted honors. Even though he is now in his 80s, Pitmans animated manner makes it easy

发表于:2019-01-13 / 阅读(276) / 评论(0) 分类 VOA标准英语2012年(一月)

KELLY MCEVERS, HOST: We're going to hear about something called geofencing. You might know about it. But if you don't, it's wireless technology that tracks mobile devices entering and exiting a specific area. Up to this point, it's mostly been used b

发表于:2019-01-16 / 阅读(123) / 评论(0) 分类 2017年NPR美国国家公共电台7月

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(107) / 评论(0) 分类 2017年NPR美国国家公共电台8月

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(77) / 评论(0) 分类 2017年NPR美国国家公共电台12月

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(72) / 评论(0) 分类 阅读空间

U.S. President George Bush says Russia must not lay claim to the breakaway Georgian republics of South Ossetia and Abkhazia. VOA White House Correspondent Scott Stearns reports, Mr. Bush says all Russia forces must leave Georgia. Russia says there i

发表于:2019-02-06 / 阅读(94) / 评论(0) 分类 VOA标准英语2008年(八月)

今天我们要讲的习惯用语的关键词是pot。我想大家都熟悉pot这个词。它可以解释煮东西的锅子。我们要学的第一个习惯用语是: go to pot。 Go to pot这个习惯用语来自牧场。牧场上的牲口随着年龄

发表于:2019-02-18 / 阅读(140) / 评论(0) 分类 美国习惯用语
学英语单词
abasia trepidanss
absorbent pump
acre-foot diagram
antireflection film
Arabish
arc maintaining device
Aubrey
bichromated gelatin
blackbushe
blow-off cork
bone grinder
bottom tracking
burnisher burnishing machine
catalytic power
cerebrosidosis
chromagranin
chromone
cloud channel
Codomannus
Cohengua, R.
Colico
coparticipants
costumbrista
covered structure
cursers
Dien Bien Phu, Battle of
Drumclog
el geteina (al qitena)
fluid jet stream
foodier
front barrel flange
froust
girl crush
glottitis
glutei maximi
hamamelid dicot genus
harmonic motion
hyrolase
in situ concentration
kondrashins
leakage disharge
Lojbanists
low-frequency amplification
Malawi kwacha
melilite humboldtilite
message acknowledgment
moodwise
mortarless wall
mouna
multiple microphone
muqtada
Naidu
negotiable certificates of deposit (ncd)
Niebylec
NISM
nontainted
oil pressure gauge
once-through boiler automatic control system
out of band emission
overwrappers
oxygen-enriched atmosphere
palmiform
para-dye
parachloro-penyl methyl sillicone
pasuolan
pay dear for her whistle
Peter Cook
photooxygenation
progressive seasonal index
pseudanthessiid
removedness
road transport of goods
rotorman
roundtrees
rubixanthin
salimbene
samson
sheeny
ship deflection load
shirtfronted
shoegasms
sixth-form
somatotropinoma
sovenance
spectral bands
sphenethmoids
starobelsks
steam jet siphon
street side
ticket stamping machine
tomi
toothed gear
turbine control panel
two faced terry cloth fabric
type iv allergic reactions
Underpayment Penalty
union carbide
usenets
vahagn
Vapor Gard
W by S