二维化合物

Grammar Girl here. Todays topic is the complex-compound sentence. Guest writer Sal Glynn writes: Most writers worth their fingertip calluses begin as avid readers. We read books, magazines, and websites indiscriminately until we start to notice the w

发表于:2018-12-07 / 阅读(147) / 评论(0) 分类 英语语法 Grammar Girl

Looking Into Your Brain Just Became Easier Researchers and engineers keep improving the machines that help doctors better understand and diagnose conditions that affect our brains. One of the goals is to find causes of Alzheimers and Parkinsons disea

发表于:2018-12-16 / 阅读(104) / 评论(0) 分类 VOA标准英语2016年(六月)

Intonation can indicate completely different meanings for otherwise similar words or phrases. For example, an English teacher teaches English, but an English teacher is from England; French class is where you study French, but French class is Gallic

发表于:2018-12-27 / 阅读(97) / 评论(0) 分类 美式英语正音训练

Doctors Have a New Tool to Identify Breast Cancer Breast cancer is the most common cancer in women worldwide. Early discovery and treatment can save lives. Scientists are working new ways to recognize breast cancer while at the same time studying exi

发表于:2019-01-03 / 阅读(107) / 评论(0) 分类 2018年VOA慢速英语(一)月

As the richest man in the world, Bill Gates is no stranger to success. 作为这个世界上最富有的人,比尔盖茨对成功并不陌生。 So when the billionaire tech mogul and philanthropist offers insight or advice, it's smart to listen. 所

发表于:2019-01-03 / 阅读(112) / 评论(0) 分类 实用英语

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? The 2010 Nobel Prize in Physics goes to the University of Manchesters Andre Geim and Konstantin Novoselov for their investigations of the two-dimensional material graphene

发表于:2019-01-08 / 阅读(147) / 评论(0) 分类 Scientific American(十)月

AGRICULTURE REPORT - Scientists Find Compound in Smoke that Helps Seeds Grow By Mario Ritter Broadcast: Tuesday, July 20, 2004 This is Steve Ember with the VOA Special English Agriculture Report. A di

发表于:2019-01-11 / 阅读(146) / 评论(0) 分类 农业与发展

3-D Technology Saves Lives 3D技术拯救生命 From VOA Learning English, this is the Health Report. Three-dimensional technology -- known as three-D -- gives depth to objects that would otherwise appear two-dimensional, or flat. Three-D makes movie

发表于:2019-01-12 / 阅读(110) / 评论(0) 分类 2014年VOA慢速英语(七)月

The United Nation's World Food Program says rogue members of Somalia's extremist al-Shabab group attempted to raid its compound late Sunday in the Somali town of Wajid, about 300 kilometers northwest of Mogadishu. World Food Program spokesman, Peter

发表于:2019-01-14 / 阅读(183) / 评论(0) 分类 VOA标准英语2009年(八月)

请看相关报道: Quick Response codes(QR code) have been used in advertisements for years, and a handful of American funeral homes began attaching them to gravestones in early 2011. 快速回应码在广告界已经使用好几年了,有一部分

发表于:2019-01-18 / 阅读(125) / 评论(0) 分类 英文语法词汇

And then our mothers tell us, Careful you don't fall down, because you'll fall over. 然后母亲告诉我们,没有跌倒也要小心,因为你还会掉下来。 Now, go into the real atmosphere of this planet. 现在,进入这个行星真正的

发表于:2019-01-18 / 阅读(127) / 评论(0) 分类 TED演讲娱乐篇

Well, it's the relative importance. 就是二者间的相对重要性。 You would say-yeah, yeah, yeah, we all know this;water covers twice the area of the planet than dry land. 也许你会说,是,是,是,我们都知道,地球上水覆盖的

发表于:2019-01-18 / 阅读(97) / 评论(0) 分类 TED演讲娱乐篇

What do these five words have in common: hotdog, fireworks, well-being, waistline, sunset and ice cream? They could all describe a fun holiday celebration. For example: My holiday was wonderful! I went to a friends party and we laughed, ate and had a

发表于:2019-01-21 / 阅读(191) / 评论(0) 分类 2018年VOA慢速英语(十二)月

By Elizabeth Carlassare. Todays topic is compound interest. Albert Einstein is often quoted as having said something to the effect that compound interest is the greatest wonder of the universe. Its an urban legend, but it packs some punch! In todays

发表于:2019-01-30 / 阅读(169) / 评论(0) 分类 货币英语

Genome: Now in 3-D! In a study in the journal Science, researchers report the mapping of the three-dimensional structure of the human genome, and the finding that the cell's nucleus is divided into two regions, one where DNA goes to get expressed. Cy

发表于:2019-01-30 / 阅读(159) / 评论(0) 分类 60秒科学

China UnionPay, the national bankcard association, last Monday launched its own application and security standard for two-dimensional barcode payment. 全国性银行卡联合组织中国银联于上周一推出了自己的二维码支付应用和安全

发表于:2019-02-04 / 阅读(258) / 评论(0) 分类 英语新闻

2009年的一部3D大片《阿凡达》让很多人都记住了avatar这个词。在网络上搜索这个词,出来的结果大部分也都跟这部电影有关。其实,avatar并不是导演造的一个词,它在印度教中指圣人的化身。

发表于:2019-02-06 / 阅读(126) / 评论(0) 分类 英语口语

An employee carefully scans a man standing still behind two photographic lamps with a gun-like scanner in his hand. The whole process takes approximately 10 minutes. After loading the data into the computer, the rest work is left to the 3-D printing

发表于:2019-02-14 / 阅读(122) / 评论(0) 分类 英闻天下

ISLAMABAD, Feb. 25 (Xinhua) -- The living compound of the former al-Qaida chief Osama bin Laden in Pakistan's northwest city of Abbottabad is being demolished, said one local media report. Local Urdu TV channel Express said that the front part of bin

发表于:2019-02-18 / 阅读(119) / 评论(0) 分类 英语新闻

So I'd like to propose that we can combine those two worlds, that we can combine the world of the nanoscale programmable adaptive materials and the built environment. 所以我建议把这两个世界结合起来,把纳米级上可程序化、能自我

发表于:2019-02-21 / 阅读(88) / 评论(0) 分类 TED演讲教育篇
学英语单词
abbreviated notation
actual exhaust velocity
antiauthority
apaxifylline
atrophic gastritis
bacalite
Baer's vesicle
ballet today
ballgags
banko
benzoylphenyl-hydroxylamine
bony ridges
branch and link register
capshore
ceske velenice
coefficient of average deviation
cohabitee
cytotrophoblastic cell column
decentred lens
depression of spirits
detachable maturity
developing-economy
Dolichos lablab L.
end gate seeder
end point temperature
expedited
export ware
extend flipflop
Fanfani, Amintore
flood pattern
fresh water pollution ecology
gas grid
general controls
ground-displacement
grouted rubble masonry
half screwed
heat chocks
http status
hurple
hydrocarbon oligomer
hyperaction
inlet edge cavitation
isolated-cluster crystal
janko
Karl Marx
lahmajoons
lifting slings
line security
little subprocedure depth
locoums
long-grasser
mair(e)
Mastigophoraceae
mercaptoethylamine
method of graphic rating scale
MLX
molybdenum cast iron gas welding rod
nan hsiang tzu
neptunyl potassium carbonate
non-dispersive wave
nuclear research reactor
one-electron bond
ovalocytotic
palatine tori
paleopathologically
pesting
phleoides
piezometric height
pissing off
power foldback limit
Proto-Yeniseians
pyrrolone
radius parameter
rapidly progressive glomerulonephritis
reading station
reptate
residual salt content
road apples
RVDT
Rydberg spectrum
s. v.
sarcoptess
satellite Internet connection
sayre
screen roll
semi fixed
service-led
shabaz
shrink-fit vessel
St-Dizier
steel pretreatmant
stigmatocythere flora
strong-box
subdimensions
sword dancings
tarchon
technotron
testing ship
tide notes
Umm Wazīr
vesica prostatica
warm auto-antibody