[数] 绝对收敛基

The United Nations is going green. The secretary-general has announced a new initiative to help lower the U.N.'s greenhouse gas emissions and reduce pollution. From United Nation's headquarters in New York, VOA's Margaret Besheer reports thermostats

发表于:2018-12-08 / 阅读(148) / 评论(0) 分类 VOA标准英语2008年(七月)

The tiny brain of this zebra finch may help scientists answer questions on how people form words to talk. Like humans songbirds learn to vocalize by imitation. Were able to not only just study the mechanisms of how vocal learning works in these songb

发表于:2018-12-08 / 阅读(111) / 评论(0) 分类 VOA标准英语2018年(五月)

新东方赵丽词汇课堂Lesson 30听力下载

发表于:2018-12-15 / 阅读(263) / 评论(0) 分类 新东方赵丽词汇课堂

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(174) / 评论(0) 分类 Scientific American(一)月

Researchers have discovered an almost universal word. Huh? You say? Even if you are not a native speaker of English, you probably dont need a translation for Huh? It appears that the word, or a very similar form of it, is used in most of the language

发表于:2018-12-28 / 阅读(87) / 评论(0) 分类 轻松英文阅读

Student: I don't think I deserve an absolute zero. Professor: Neither do I, but it is the lowest mark that I am allowed to give. 学生:我认为我不应该得零分。 教授:我也这么认为,但这是允许我打的最低分数。

发表于:2019-01-02 / 阅读(141) / 评论(0) 分类 英文笑话

One day a college professor of Psychology was greeting his new college class. He stood up in front of the class and said,Would everyone who thinks he or she is stupid please stand up?After a minute or so of silence, a young man stood up. Well, good m

发表于:2019-01-07 / 阅读(138) / 评论(0) 分类 趣味英语

Evoking images from the liquid metal and nearly unstoppable Terminator from the movies, BAE Systems has posted concept video footage of a process to create drones of the future. 近日,BAE系统公司发布的一份概念视频展示了未来制造无

发表于:2019-01-07 / 阅读(140) / 评论(0) 分类 英语新闻

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Heres a novel potential public health measure against the flukick up the humidity. The cold, dry months of winter signal the start of flu season. But previous resear

发表于:2019-01-08 / 阅读(168) / 评论(0) 分类 Scientific American(二)月

ROBERT SIEGEL, HOST: Biologist Jonathan Losos and I have at least one thing in common - we were both blown away by the late paleontologist Stephen Jay Gould's 1989 book Wonderful Life. Gould saw evolution as being all about odd contingencies, acciden

发表于:2019-01-16 / 阅读(176) / 评论(0) 分类 2017年NPR美国国家公共电台9月

But even though the insect brain is organized very differently from ours, there are some striking similarities. 虽然昆虫与人类大脑的组成大相径庭,但是仍有很多惊人的相似之处。 For example, most insects have smell detecto

发表于:2019-01-17 / 阅读(142) / 评论(0) 分类 TED演讲教育篇

(1) T:Look at number 120. Have you got any?你有吗? S: Ineed a lot of cheese. I haven't got much.我需要一些奶酪,我没有多少了。 (2) T: Look at Number 438. Has he got any?他有吗? S: Heneeds a lot of envelopes. He hasn't

发表于:2019-01-23 / 阅读(142) / 评论(0) 分类 英语学习乐园

Dogs have been mans best friend for thousands of years, a source of companionship and loyalty since the Stone Age. 几千年以来,狗狗都是人类最好的朋友,从石器时代开始就是人类忠诚的陪伴。 Now scientists suspect they h

发表于:2019-01-31 / 阅读(116) / 评论(0) 分类 英语新闻

Kerry Leaves Pakistan Hopeful, Despite Divides尽管有分歧 克里仍给巴基斯坦留下希望 U.S. Secretary of State John Kerry has wrapped up a visit to Pakistan with an agreement by the two countries to resume a dialogue on security issues. T

发表于:2019-02-01 / 阅读(129) / 评论(0) 分类 VOA常速英语2013年(八月)

学个词-1755-on-the-basis-of 今天我们要学的词是 on the basis of. On the basis of 根据某种原因。The study drew its conclusions on the basis of hard data. 这项研究是根据硬数据得出研究结论的。He was denied employment

发表于:2019-02-05 / 阅读(177) / 评论(0) 分类 英语单词荟萃

Itcanbeinferredfromthepassagethatthe authorwouldbemostlikelytoagreewith whichofthefollowingstatementsregarding socioeconomicclassandsupportforthe rebelandLoyalistcausesduringthe AmericanRevolutionaryWa

发表于:2019-02-06 / 阅读(135) / 评论(0) 分类 英文语法词汇

Science and technology: Panda genetics 科技:熊猫遗传学 Hey dude. Give me six! 嘿,伙计。用六指击个掌吧! Two strange mammals illuminate the process of natural selection. 两种不同的哺乳动物阐明自然选择的过程。

发表于:2019-02-16 / 阅读(158) / 评论(0) 分类 经济学人科技系列

Some students prefer to study alone. Others prefer to study with a group of students. Which do you prefer? Use specific reasons and examples to support your answer. Study habits are a very individual thing. Some people like to study alone, while othe

发表于:2019-02-19 / 阅读(116) / 评论(0) 分类 托福英语

ARI SHAPIRO, HOST: Two films opened today with titles that make them sound a lot sexier than they are. One is called Vice and the other On The Basis Of Sex. What they are is biopics about a conservative vice president and a liberal Supreme Court just

发表于:2019-02-21 / 阅读(189) / 评论(0) 分类 2018年NPR美国国家公共电台12月

释义: be on a first-name basis 关系很好,可以随便叫名字 be on 表示放在上面,处于某种状态中。be on the way 表示正在路上。be on the phone call 表示正在通话,另外,在饭店说 be on somebody 的话就表示

发表于:2019-02-26 / 阅读(144) / 评论(0) 分类 老外最常用的英文短语
学英语单词
acceleration unit
air kerma rate constant
alex haleys
allassotonic
anticreeper
approach procedure
as clear as mud
at the bottom of one's heart
auctionings
Australian Ballet
auxiliary keyboard
bromyrite
cable-drilling system
Cerbera manghas
chauf
chladniite
chromatic phytosis
clamped down
cleaning bar
cohomology spectral sequence
come loose
cream bleaching
d.d.s.
decemviral
deep water drillship
delocalization
demand assigned frequency
denotee
Doppler system with single frequency
down station
duetist
electron conduction
electronic medium
evaluating materials
evergreen grass
exponential averaging
exurb
feet-on-the-ground
floating point routine
foregroundable
Grand Brûlé
Granville's counterirritant
half dog point
Hans.
Haraym
Hauts Plat.
herbacetin
heroick
high voltage resistor
hydraulic oscillating cylinder
ill fames
influenced by
Inkongo
isoporous cation exchange resin
king tides
kish graphite inclusions
limited application
loughridge
loulanensis
machimus impeditus
mast antenna
meliorizes
micromatrix approach
multifrequency receiver
multilateral compensation
myofibrillas
nearby month contract
nonachlazine
off tread braking
off-take pipe
Oxfordian
peaktank
picket fence thermonuclear reactor
Piddletrenthide
Pilskie, Województwo
primary ionization event
Prince Olaf Coast
prosternal epimera
pump dredge
quadratic equation
Salix phylicifolia
scanning periscope
shear pole derrick
sleep temple
standard plane
stereo recording
strongly implicit procedure technique
suitabilities
superalgebra
talki
tautoneura elscinta
tax free trade zone
thermal randomness
third generation OS
transducer element
transparent soap
Traube's space
twelve-hour
unfluxed asphalt
united-front
UV photoelectron spectrometry (UVPES)
yezidi