音标:[.insig'nifikәnsi] ;
n. 无关紧要的事物(或人)
n. Insignificance.

【近义词】

Scientists at the Massachusetts Institute of Technology (MIT) have created what could be a breakthrough in providing clean, alternative energy. Researchers have invented an artificial leaf that splits water into hydrogen and oxygen and stores the ene

发表于:2018-12-07 / 阅读(172) / 评论(0) 分类 创新英语

THE PRESIDENT: Hello, everybody. Now, let me just comment, first of all, on the fact that I can't get the networks to break in on all kinds of other discussions -- (laughter.) I was just back there listening to Chuck -- he was saying, its amazing tha

发表于:2018-12-18 / 阅读(149) / 评论(0) 分类 美国总统演讲视频

20 The Historical Significance of American Revolution The ways of history are so intricate and the motivations of human actions so complex that it is always hazardous to attempt to represent events covering a number of years, a multiplicity of person

发表于:2019-01-02 / 阅读(455) / 评论(0) 分类 英语范文背诵20篇

Todays episode concerns a what-you-may-have-been-wondering-about topic. That sure was a mouthful, and it illustrates the problem of stacked modifiers, which occurs when you string together too many words to describe a noun at the end of the mouthful.

发表于:2019-01-02 / 阅读(135) / 评论(0) 分类 英语语法 Grammar Girl

Artificial Muscle Brings Back Blink A study in the Archives of Facial Plastic Surgery reports the development of an artificial muscle system that could restore the ability to blink to stroke and injury patients. Cynthia Graber reports Most of us blin

发表于:2019-01-02 / 阅读(220) / 评论(0) 分类 60秒科学

Grammar Girl here. Today guest-writer Bonnie Trenga is going to help us take a break from serious grammar and instead delve into the world of comedysome intentional, some not. Groucho Marx said it best: One morning I shot an elephant in my pajamas. H

发表于:2019-01-07 / 阅读(158) / 评论(0) 分类 英语语法 Grammar Girl

The itsy bitsy spider climed up the water spout. Down came the rain, and washed the spider out. Up came the sun, and dried up all the rain, And the itsy bitsy spider went up the spout again.

发表于:2019-01-09 / 阅读(349) / 评论(0) 分类 鹅妈妈童谣

By Franz Wild Abidjan 24 May 2006 Charles Konan Banny greets villagers in Meagui In war-divided Ivory Coast disarmament and personal identification, the two obstacles to elections, saw partial success in a pilot program this week. There is little si

发表于:2019-01-13 / 阅读(176) / 评论(0) 分类 2006年VOA标准英语(五月)

Oum Sok began working as a cyclo driver when he was 18. He says the city has become very expensive over the years, making it much harder to earn a living. New York has its yellow cab. London has its red bus. But Phnom Penh has its cyclo - a three-whe

发表于:2019-01-13 / 阅读(170) / 评论(0) 分类 VOA标准英语2010年(六)月

Doctors Achieve Milestone Using Artificial Heart With No Beat In March, two doctors at the Texas Heart Institute in Houston achieved what medical experts call a major milestone by implanting a continuous-flow artificial heart in a human patient. The

发表于:2019-01-13 / 阅读(169) / 评论(0) 分类 VOA标准英语2011年(七月)

Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani

发表于:2019-01-14 / 阅读(192) / 评论(0) 分类 VOA标准英语2011年(四月)

The International Committee of the Red Cross is appealing for access to all areas of conflict in Libya as fighting intensifies. The president of the ICRC, Jakob Kellenberger, says the conflict in Libya has descended into civil war. He says he is alar

发表于:2019-01-14 / 阅读(109) / 评论(0) 分类 VOA标准英语2011年(三月)

Scientists say they have successfully tested artificial blood vessels grown in the laboratory. In a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the hear

发表于:2019-01-14 / 阅读(140) / 评论(0) 分类 VOA标准英语2011年(二月)

By Al Pessin Honolulu, Hawaii 20 October 2009 Command of U.S. forces in Asia and the Pacific and Indian Oceans passed to a new commander on Monday at a ceremony in Honolulu, Hawaii. Navy Admiral Robert Willard said the U.S. commitment to the region

发表于:2019-01-14 / 阅读(117) / 评论(0) 分类 VOA标准英语2009年(十月)

Grammar Girl here. Today's topic is misplaced modifiers. Of all the writing errors you can make, misplaced modifiers are among the most likely to confuse your readers, but they're also kind of fun because misplaced modifiers can give your sentences s

发表于:2019-01-30 / 阅读(192) / 评论(0) 分类 英语语法 Grammar Girl

By Chad Bouchard Bali 05 December 2007 Environmental experts at the United Nations Climate Change Conference in Bali say illegal logging is decimating tropical forests and contributing to rising global temperatures. Chad Bouchard reports from the con

发表于:2019-02-06 / 阅读(110) / 评论(0) 分类 VOA常速英语2007年(十二月)

Researchers have developed a method to activate electronic implants in the body and eliminate bacterial infections using a wireless signal。 研究者已经开发了一种运用无线信号激活人体中电子植入物来消除细菌感染的方法。

发表于:2019-02-08 / 阅读(98) / 评论(0) 分类 英语新闻

Deciding where to place a Wi-Fi router at home to minimise signal blackspots is a fine art. But a physicist has attempted to tackle the problem by mathematically working out the optimum position for a router. He studied how walls and reflections affe

发表于:2019-02-08 / 阅读(130) / 评论(0) 分类 英语新闻

U.S. military officials say they have identified the four Marines seen on video urinating on the bodies of dead Afghan Taliban fighters. The Naval Criminal Investigative Service, heading the main inquiry into the video, has also reportedly questioned

发表于:2019-02-08 / 阅读(170) / 评论(0) 分类 英语新闻

Leaders of the Greek and Turkish communities of Cyprus are starting a new series of negotiations aimed at re-unifying the divided island. Cypriot President Demetris Christofias and Turkish Cypriot leader Mehmet-Ali Talat have begun a series of three-

发表于:2019-02-11 / 阅读(188) / 评论(0) 分类 VOA标准英语2010年(一月)
学英语单词
abietenes
adventure learning
air balanced pumping unit
apprehensivenesses
article clerk
artificial fibre making wood
backcheck
backward stagger
bank rags
blowball
boundary value observer
bucket address
Cagian
cataphote
cathode lead inductance
coagulator
cold-presseds
collective leadership
coloring matter
combinatorially
continuous indicating Loran
corrosive gastritis
counterimmunoelectrophoresis-densitometric
crozzling
crucifieth
curium(iv) oxide
cyberimmortality
cyperus platystylis
diamond anastomose
dielectric loading factor
donut holes
duly stamped
dynamic nesting of subprogram activation
early pregnancy
elongation at failure
fluorenamine
Fragaria virginiana
fuel orientation
gahrmann
gamepads
gottsman
Grable, Betty
Haemost
high-temperature cabinet
Hypogastropathy
individual camera
interest rate adjustment
jet-assisted takeoff
Joyakdo
kemalists
kneeling chair
Law,John
Lazareva, Ostrov
lime content
Manuel, L.
Marlesford
microwave wave guide
modifier area
modular grid
molybdenous
national literacy strategy
nonmonotonicity
oah
Oenanthe pterocaulon
outlet-pipe
parapodial
partes infraclavicularis
Perryopolis
Petalion, Kolpos
poison sac
positive staining
predetermined motion time system
prostatic sarcoma
puncht
rassing
ratskin
re-occupied
reciprocated mould
river snail
RNECT
roasted mutton
Samuye
service communication system
Silver Springs
specific search
statutory arbitration
Sénarpont
tephromalacia
thiobenzoyl
toey
tracheal recess
Tucuruvi
undecanedicarboxylic acid
universal buffer controller
verification of forecast
volatilised
voluntary'tax
wavelength scanning photometer
wiener klassiker
worming
wryed
YTTM