反像棱镜,转像棱镜

STEVE INSKEEP, HOST: Just about every American adult has heard the names Roe and Wade. Roe v. Wade was the 1973 Supreme Court decision legalizing abortion in the United States. Not so many people know about the real people involved, and now a new pla

发表于:2018-12-17 / 阅读(192) / 评论(0) 分类 2017年NPR美国国家公共电台1月

The Government Communications Security Bureau (GCSB) is our spy organisation. At the moment, it can only legally spy on foreigners in New Zealand. However this organisation made a mistake spying on Kim Dotcom because he is a permanent resident. Also,

发表于:2018-12-31 / 阅读(182) / 评论(0) 分类 新西兰英语

The fortunes of American and Japanese automakers are reversing. The three big automakers in the United States - General Motors, Ford and Chrysler - all are profitable now after struggling financially(金融上) during the world economic downturn that

发表于:2019-01-07 / 阅读(218) / 评论(0) 分类 英语新闻

Spectrum 光谱 Do you know what a spectrum is? 你知道光谱是什么吗? It is a series of colored lights. 它是复色光。 How can we see a spectrum? 我们怎么能看到光谱? When you see sunlight through a prism, you may see a rainbow

发表于:2019-01-10 / 阅读(201) / 评论(0) 分类 与美国小学生一起学英文第11册

Prisms 棱镜 Why can we see rainbows after rain? 我们雨后为什么能看到彩虹? We can see rainbows after rain because droplets of moisture in the air work like a big prism. 这是因为空气中的水滴就像一个大棱镜。 So what is

发表于:2019-01-10 / 阅读(174) / 评论(0) 分类 与美国小学生一起学英文第10册

歌曲:Katy Perry-Roar Roar, the first cut off of Katy Perry's upcoming album Prism, hit the airwaves last week and went right to the top of the Billboard charts (for digital songs). One person who is particularly fond of the song (besides everyone

发表于:2019-01-10 / 阅读(233) / 评论(0) 分类 英语娱乐八卦

By Daniel Schearf Irbil 01 March 2008 The Iraqi government says the number of civilians who were killed rose by a third in February, reversing a six-month trend that came with security improvements. A U.S. military spokesman says violence is still do

发表于:2019-01-12 / 阅读(176) / 评论(0) 分类 VOA标准英语2008年(三月)

BEIJING, Nov. 28 (Xinhuanet) -- Scientists in Canada have raised a prospect of reversing Alzheimer's disease by deep brain stimulation, according to media reports Monday. The technique here is known as deep brain stimulation -- applying electricity d

发表于:2019-01-20 / 阅读(212) / 评论(0) 分类 英语新闻

From VOA Learning English, this is the Health Report. November is Alzheimers Awareness Month in the United States. Alzheimers is a frightening disease. It is frightening not only for those who suffer from memory loss, but also for their loved ones. B

发表于:2019-01-24 / 阅读(214) / 评论(0) 分类 英语语言学习

暂无音频 Weekly Address: Reversing a Troubling Trend in Food Safety In this week's address, President Barack Obama makes key announcements regarding the safety of our nation's food. We are a nation built on the strength of individual initiative. But

发表于:2019-01-26 / 阅读(232) / 评论(0) 分类 美国总统每日发言

By Gilbert da Costa Abuja 16 October 2006 An international campaign to draw attention to the huge agricultural potential of the Sahel drylands of Africa is gaining ground, with a recent workshop in Niamey, the capital of Niger. The campaign seeks to

发表于:2019-02-02 / 阅读(278) / 评论(0) 分类 2006年VOA标准英语(十月)

And the mice that drank regular water? They lost more and more of their memory and thinking skills. So does this mean that drinking lots of coffee or tea or even soft drinks will prevent you from getting Alzheimers? Could reversing memory loss caused

发表于:2019-02-15 / 阅读(152) / 评论(0) 分类 英语时差8,16
学英语单词
a world away
abnormal odor
access-panel
alternative allocation
apogameon
arborealism
Armillaria root rot
asymmetrical branching process
automatic lighter
bastin
bazookaists
boiler burner test
Budanovka
ceriopyrochlore
chelicerate
chit of a girl
chrome salt
co-afforest
coarse para
colloidal complex
commutator and head oil guard
concubinal
Corallinerz
daphne (dhafni)
denying the antecedent
dependence on import
dowiyogo
dumoing duty
dumpster(-)diving
dynamic wave
ecologic niche
economic objective
error summary counter
European Commissioners
faradic irritability
follow the trail of
foreshortening
fractionizing
health care costs
heptacosadiene
Hupa Valley
hustle alarm
hyalinus
hypothyroid
implied bracket
isophosphinoline
kellmers
kicker cylinder
lattice water
Leb
lobaria subscrobiculata
locomotive braking distance
MARS (management analysis reporting system)
mesic atom
metastasizing septicemia
method of comparison
Midbea
Mimm's culicide
Moissan
molybdenum(v) hydroxychloride
moundsman
multiband post acceleration tube
Newton Heath
number-average DP
obsignatory
photo-second
pinceau
plain cast iron share
plugging the gap
poi dance
pole tip
poplar bark
rest of the kernel
RHR (system )pump
roggan (rocking stone)
scrapped ship
second place
senescence of leaves
silicon halide
snapper sea bream
social-network
Spanish tamarind
spel(a)eology
spot desmosome
stoker grade
substantivities
symbiosomes
system development corporation
tablet coating machine
take ... seriously
take sb all his time
telefund
the med
three-link
Tobijah
tracer analysis
two step read
uratic deposit
vasa exhalantia
vestibular laminae
wood-smoked
wul