沼地螺旋推进水陆两用车

[00:03.68]astronomy astronomer biochemistry geophysics [00:11.40]天文学 天文学家 生物化学 地球物理学 [00:19.12]atmosphere solar system solar system [00:26.64]大气层 太阳的 系统 太阳系 [00:34.17]Big Bang violent solid explod

发表于:2018-12-13 / 阅读(183) / 评论(0) 分类 高中英语人教版必修

Friends and neighbors of army staff sergeant Robert Bales in Tacoma Washington say they are shocked by the accusation that he murdered 16 Afghan villagers last weekend in a sudden shooting spree.Cathy Holland lives near Bales',his wife and two childr

发表于:2018-12-24 / 阅读(139) / 评论(0) 分类 CNN2012年(三)月

This is Scientific America's 60 second science, I'm Sentay Graber, this will just take a minute. Magnifying glass, telescope, tiny tiny tape measure, these are the weapons with which researchers are fading it out to find the world's smallest frog.One

发表于:2018-12-24 / 阅读(143) / 评论(0) 分类 Scientific American(一)月

Magnifying glass, calipers, teeny tiny tape measure, these are the weapons with which researchers are fighting it out to find the world's smallest frog. One team just announced the discovery of the unaverage 7.7 millimeter p* which can sit comfortabl

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 Scientific American(一)月

Broadcast: Apr 04, 2003 The war in Iraq is taking place around the Tigris and 2) Euphrates Rivers, what 3) archaeologists call the cradle of Western civilization. The historic rivers flow into the Mes

发表于:2019-01-03 / 阅读(186) / 评论(0) 分类 VOA2003(上)-科技先知

Sidney was a 14-year-old boy with an interest in the sciences. One summer day he started his own investigations. With his 12-year-old sister Sophie in tow, he caught a large bull frog in a local pond. Sidney started his experiment with the amphibian,

发表于:2019-01-03 / 阅读(159) / 评论(0) 分类 英汉幽默故事选读

airliner 班机 monoplane 单翼飞机 glider 滑翔机 trainer aircraft 教练机 passenger plane 客机 propeller-driven aircraft 螺旋桨飞机 jet(aircraft) 喷射飞机 amphibian 水陆两用飞机

发表于:2019-01-06 / 阅读(129) / 评论(0) 分类 英文语法词汇

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute Declining frog populations are considered an indicator of environmental damage. But new research finds that frogs might be doing even worse than we thou

发表于:2019-01-08 / 阅读(122) / 评论(0) 分类 Scientific American(八)月

From NPR News in Washington, I'm Lakshmi Singh. Terrorism is not being rolled out in today's shooting attack in Frankfurt, Germany that left two US airmen dead and two others wounded. President Obama says he is saddened and outraged. I want everybody

发表于:2019-01-08 / 阅读(355) / 评论(0) 分类 2011年NPR美国国家公共电台3月

A: Quit screwing around and work on your paper, Max! A: Max, 不要胡闹了, 作你的报告去吧! B: I don\'t want to. How can I write about something I never read? B: 我不想啊。要我怎么样写我都没读过的东西嘛? 你有没有发现

发表于:2019-01-08 / 阅读(151) / 评论(0) 分类 美国俚语

A: A piece of advice. Don\'t screw around with her. She\'s got a terrible temper. A: (给你)一个忠告, 别跟她乱来, 她的脾气可坏得很! B: She does? But she looks like a sweet little angel. B: 是吗? 但是她看起来像个可爱善良的

发表于:2019-01-08 / 阅读(160) / 评论(0) 分类 美国俚语

AS IT IS 2016-02-16 Students Learn Hands-on With Animals 学生学习如何照顾动物 Talking birds, goats butting heads, and a giant tortoise that hangs out with chickens are all part of a living classroom. High-school students at the Career Cente

发表于:2019-01-12 / 阅读(145) / 评论(0) 分类 2016年VOA慢速英语(二)月

Science and technology 科学与技术 Splay-footed, not flat-footed 不是扁平足而是八字足 A new fossil shows that evolution does not always mean change 新发现的化石显示,进化并不总意味着变化 Palaeontology 古生物学 The

发表于:2019-01-26 / 阅读(156) / 评论(0) 分类 经济学人科技系列

not all there to have a screw loose 我们经常会发现有的人似乎脑子不太正常。也许是因为现代生活过于紧张,美国是有不少精神不正常的人。据说,美国人在口语

发表于:2019-02-01 / 阅读(209) / 评论(0) 分类 美国习惯用语

Winding between Zhangjiajie's peaks, crystal clear mountain streams are home to what is perhaps China's strangest creature. This bizarre animal is a type of newt, the Chinese giant salamander. In China, it is known as the baby fish because when distr

发表于:2019-02-02 / 阅读(162) / 评论(0) 分类 英语听力:文化博览2008年

解释: 1,弄糟,弄乱,搞砸(to mess up ) 例句: I hope I don't screw up this time. 我希望这次不会搞砸了。 Try again and don't screw it up this time. 再试一次,这次别搞砸了。 2,如果是screw up somebody 或者sc

发表于:2019-02-09 / 阅读(162) / 评论(0) 分类 美国俚语

screw up 的常见意思及用法 1.弄糟,弄乱,搞砸(to mess up) 例句: I hope I don't screw up this time. 我希望这次不会搞砸了。 Try again and don't screw it up this time. 再试一次,这次别搞砸了。 2.如果是screw u

发表于:2019-02-09 / 阅读(152) / 评论(0) 分类 美国俚语

Lesson 14 Screw 1.You can't screw up this time. 2.You got screwed again this time? 3.I'm not for sale.Screw your money! 4.You screw with me and you'll be sorry. 5.Stop screwing off in school. 6.That crook screwed me out of ¥10. 7.The guy must have

发表于:2019-02-12 / 阅读(253) / 评论(0) 分类 辛沛沛NO-BOOK 辛沛沛口语提高版

托福听力背景知识:托福听力中有大量的专业及学术词汇,这些词汇大多依托于听力背景知识,如果考生能够事先了解一些托福听力的背景知识,对听懂听力对话及段子有很有帮助。 Darvinism

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

Science and technology 科学技术 Invasive species 侵略性物种 Thorny questions 棘手问题 The ecological effects of buckthorn in North America 北美鼠李属植物的生态影响 CONSERVATIONISTS, being by definition conservative, usually v

发表于:2019-02-24 / 阅读(180) / 评论(0) 分类 经济学人科技系列
学英语单词
acetylene flame carburizing
adversour
aero-odontodynia
aless
Ananes, Nisidhes
arbitration in equality
atomic energy agreement
audient
backpedaled
broadstairs
bronchial nocardiosis
brontobytes
capriciously
carbon-dioxide removal
Chamonix
contact breaker arm
coordinate frame
crystal grain size
cutaneous cholesterosis
devolatilizers
Dionysius of Haiicarnassus
dirigismes
disorderly cordnct
DOPLOC
drop hardness test
eastonite
Egyptain cloth
electric quadrupole interaction
emporium
experimental dermatology
FATM
feastful
feed water line
floral arrangement
funrun
get out of here
heel of davit
Hersbruck
i.a.c.s.
iron(ii) oxalate
isopropyl-m-cresol
labuli culminis
laser acupuncture
launderability
lease line network
linear superposition
liquefied petroleum gas ( lpg )
look ... up and down
mactates
malwares
mcinerny
mechoulam
middelhoff
multiple-regression
neomycin sulfate
nephridioblast
neutron sponge
non unified
nondrilling
otolaryngological
penprostene
percept
player character
poked borack
polyester synthetic lubricant
portable plate
precise mass determination
put it mildly
quarterization
Raghavendra
rain water cistern
readinessreview
relading
roll on edge
ruddy-cheeked
San Miguel, Vol.de
screw-header
Shiga Naoya
silly idea
slurry steeping
soltanabad (arak)
somas
strong unicity theorem
subulated
such a night
tannest
tetarto-brachy-dome
throttle primary barrel
Ti.
tidal stretch
tores
tourist resort
trisomy 18 syndrome
uca tetragonon
UNIX shell
variable density record section
vehicle depreciation mileage
W-test
water-pit
weak structural plane of rock mass
weapon maintenance team
whitchers