[网络] 水上抗沉性

MICHEL MARTIN, HOST: Mars is about to get a new visitor from Earth tomorrow. If all goes well, a NASA probe called InSight will land near the Martian equator. Its mission is to study the interior of the planet. But, before it can carry out its missio

发表于:2018-12-18 / 阅读(87) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Create Your Own Moon Craters! What makes science really fun is when you get to do things yourself, so today were going to be making moon craters. Theyre the roundish blast-marks left on the moons surface by ancient meteorites. The moons surface is co

发表于:2018-12-31 / 阅读(49) / 评论(0) 分类 英语听力文摘 English Digest

Even as adults we still enjoy blowing bubbles, dont we? If youve ever wondered why blowing on a thin film of soapy water creates bubbles, this is your lucky day. All liquids have a property called surface tension. Take water, for example. Water molec

发表于:2018-12-31 / 阅读(69) / 评论(0) 分类 英语听力文摘 English Digest

High Inflation Fairs, carnivals, festivals or anywhere you can buy helium-filled balloons, youre sure to see at least one balloon rising into the sky after someone accidentally lets it go off. What happens to the balloon after it rises out of sight?

发表于:2018-12-31 / 阅读(60) / 评论(0) 分类 英语听力文摘 English Digest

How Rocks Appear In Your Garden I wonder how many of us went out this past spring to get our gardens ready for planting, smug in the thought that last year we got rid of all the rocks. Theres that nice big mound of them in the corner of the garden wh

发表于:2018-12-31 / 阅读(55) / 评论(0) 分类 英语听力文摘 English Digest

What Makes Windshield Glass So Tough? We tend to think of glass as fragilebut in fact, glass is pretty strong stuff. A flawless fiber of glass pulled lengthwise is five times stronger than steel! Although glass is quite strong, its also very brittlea

发表于:2018-12-31 / 阅读(65) / 评论(0) 分类 英语听力文摘 English Digest

地道美语听力播客English as a Second Language Podcast (ESLPod),是一家位于美国加州洛杉矶的英语教育研究机构推出的英文听力会话,于2005年7月23日首播, 主播Dr. Jeff McQuillan为南加州大学的语言学博士

发表于:2019-01-01 / 阅读(100) / 评论(0) 分类 地道美语播客

Microneedles 微针疗法 Female: From flu vaccin es to tetanus booster s , injections are a must in modern medicine. But do they always have to make you say Ouch? Male: Eh,no? F: No,indeed.If new microneedle technology is successful, we may soon hav

发表于:2019-01-26 / 阅读(74) / 评论(0) 分类 英语听力文摘 English Digest

地球是太阳系从内到外的第三颗行星,也是太阳系中直径、质量和密度最大的类地行星。它也经常被称作世界。英语的地球Earth一词来自于古英语及日耳曼语。地球已有44~46亿岁,有一颗天然

发表于:2019-01-26 / 阅读(73) / 评论(0) 分类 英语听力文摘 English Digest

A Smooth Wake 平静的尾流 (A smooth wake on today's moments of science) Female: Donne and I are on a fantacy cruise . The sun has set and were standing on the rear deck. Look at the reflection of the moon. Male: You might expect a ship's wake

发表于:2019-01-26 / 阅读(57) / 评论(0) 分类 英语听力文摘 English Digest

The National Oceanic and Atmospheric Administration (NOAA) confirms that some of the oil escaping from that ruptured well in the Gulf of Mexico is staying beneath the surface, raising new environmental concerns about the disaster. BP says there is no

发表于:2019-01-30 / 阅读(111) / 评论(0) 分类 VOA标准英语2010年(六)月

Climate change negotiators from 173 countries have agreed on an agenda after days of bickering over the scope of talks left little time for substantive discussions. The disagreement highlighted deep divisions between developing and rich countries on

发表于:2019-01-30 / 阅读(106) / 评论(0) 分类 英语新闻

Marit Larsen 从那个红遍全球的少女组合M2M里走出来的Marit Larsen并没延续M2M的流行摇滚,而是选择了清澈的民谣曲风,用她时而俏皮时而的甜蜜的嗓音来吟唱她自己写的小曲儿,带给听者如沐春风的清新感觉。 中英歌词: It's such a funny sensation to be so happy that

发表于:2019-02-06 / 阅读(134) / 评论(0) 分类 音乐咖啡厅

Hi there, I'm Ore with the BBC World News for Children. Coming up: Japan's mission to super hot planet. A new survey says kids care more about computers than animals. And Inter Milan face Bayern Munich in the Champion's League final. First up, after

发表于:2019-02-16 / 阅读(65) / 评论(0) 分类 英语听力文摘 English Digest

LOS ANGELES, June 18 (Xinhua) -- Microsoft Corp. unveiled Monday a family of tablets dubbed Surface, built on Windows 8, at an event in Los Angeles. Microsoft Chief Executive Steve Ballmer introduced the company's Surface family of tablets. The devic

发表于:2019-02-17 / 阅读(106) / 评论(0) 分类 英语新闻

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发表于:2019-02-19 / 阅读(120) / 评论(0) 分类 加州英语分级G6

Why lips go dry? 为什么嘴唇会干呢? Lets start by reviewing the ways in which the surface of our lips is different from the surface of the skin on the rest of our bodies. Basically, our lips are made of the same mucus membrane that coats t

发表于:2019-02-24 / 阅读(92) / 评论(0) 分类 英语听力文摘 English Digest

It's a common enough sound in summer, after the wind finally picks up on a hot and humid afternoon, as the rain starts spattering down in big, fat drops--you're in for a full-blown thunderstorm. It's much less common in winter, even during a snow sto

发表于:2019-02-24 / 阅读(118) / 评论(0) 分类 英语听力文摘 English Digest

Topics: Ask an American: social media and job searches; go ahead, make my day; years old versus year old Words: to scratch the surface theres no telling wild, wild west tremendous social media to enhance credibility thought leadership buddy to dictat

发表于:2019-03-05 / 阅读(213) / 评论(0) 分类 美语听力 English Cafe

Why Frisbees Fly With a gentle flick of the wrist on a warm summer day, you can launch a frisbee on a long and graceful flight. Why do they fly so well? One reason is something called gyroscopic force. This is the tendency of a spinning object to mai

发表于:2019-03-09 / 阅读(126) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
'Aïn Defla, Wilaya d'
-pr-
accelerator valve
actinide metal alloy
air blow floatation unit
alcohol-impaired
algebraic code
amend the terms of LC
antes
anti-attrition
astronomical azimuth station
automatic udder washing device
back-to-back(ticket)
baseline wander
bertis
bioprecursor
bites you
blacke saunts
Bohm's operation
Brasovskiy Rayon
bulboventricular crest
certificate of audit
crystallization parameter
cyclo-adenosine-monophosphate
degree of aeration
demagnetization energy
dibromotyrosine
dragoon sb into doing sth
drop-panel
edimo
epinephelus chlorestigma
five speed
glozed
greenewood
hiccupped
howlite
hunger pang
iEverything
indicator drive
infinite series
international postal reply coupons
inversion carrier
kidney-sharp reniform
ladder scaffold
leg negative pressure
liquid squeezed ingot
lithium laurate
lobster-eyed
lower oneself
loxal process
machine code programming
metamorphosis dimidio
misobserved
nockels
nuclei ventralis thalami
nurse-fellow
offer for sale by tender
opposing jet
over-arching
Paris polyphylla
pedogeography
performance-based mechanism
pick-up ring
plastic tray
Pleth
printout paper
prunus sieboldiis
quasi-stationary state
radio hookup
ratio-to-moving-average method
raudixins
rebellions
reservoir silting
ride cymbals
rotary concentrator
Salado Blanco
sand clay
Saskatchewan Gl.
short note
Sibiromotsin
side-bound ligand
single-chamber
sodium contaminants
soga
superficial deterioration
suspended signal
swainson pea
swiveling table
tartar salt
ternatus
the Red Crescent
thin layer culture
tidal equation
toughened water gauge glass
Toécé
transfer gearbox
treasure hunting
tubular-flow reactor
undersecretary
unevasive
vivaries
web color