音标:[,prәutәu'klɔ:raid] ;
氯化亚(某), 低氯化物

Rho Ophiuchi dark cloud is one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth. The infrared astronomical satellite, now celebra

发表于:2018-12-05 / 阅读(247) / 评论(0) 分类 国家地理2008年

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(213) / 评论(0) 分类 VOA标准英语2014年(六月)

Voice 1 Welcome to Spotlight. Im Katy Blake. Voice 2 And Im Christy VanArragon. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 Small, shiny shells. Roun

发表于:2018-12-19 / 阅读(181) / 评论(0) 分类 环球英语 Spotlight

1. protagonist /prəˈtgənɪst/ -- the leading(first) character in a play, novel or story Brutus is the protagonist in William Shakespeare's Julius Caesar and Antony is the antagonist. 布鲁特斯在威廉莎士比亚的《尤利乌斯凯撒》中是

发表于:2018-12-30 / 阅读(179) / 评论(0) 分类 突破英文词汇

Scientists Observe Birth of Huge Galaxy Cluster For the first time ever, astronomers have observed the birth of a galaxy cluster, known as a protocluster. The event, billions of light-years away, could form one of the largest-known structures in toda

发表于:2019-01-03 / 阅读(184) / 评论(0) 分类 2018年VOA慢速英语(五)月

d-Pinoresinoldi-O-b-glucopyranoside 松脂酚双吡喃葡萄糖甙 d-Pinoresinol d-松脂素 Piperitone 胡椒酮 Plantaginin 车前甙 Platycodin A, C, D 桔梗皂甙A,C,D Podophyllotoxin 鬼臼毒

发表于:2019-01-03 / 阅读(270) / 评论(0) 分类 医务英语

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(214) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(264) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(203) / 评论(0) 分类 自然百科2009年

By Phil Mercer Sydney 03 December 2007 Kevin Rudd has been sworn in as Australia's new Prime Minister with an agenda of action on climate change and the repeal of unpopular industrial laws. The new government has signed the Kyoto Protocol on climate

发表于:2019-01-25 / 阅读(188) / 评论(0) 分类 VOA常速英语2007年(十二月)

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(187) / 评论(0) 分类 地道美语播客

In 2001, a team from Tel Aviv University argued that B. permians were almost identical to a strain of modern bacteria, Bacillus marismortui, found in the Dead Sea. 2001年,以色列特拉维夫大学的一个小组认为,二叠纪芽孢杆菌与一

发表于:2019-02-17 / 阅读(209) / 评论(0) 分类 万物简史

What makes the sun shine? For a lot of folks, this is the kind of thing that doesn't even require explanation: it just does. But just being a commonplace phenomenon in no way explains it. Something must cause the sun to shine. And, in fact, there is

发表于:2019-02-23 / 阅读(229) / 评论(0) 分类 英语时差8,16

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(337) / 评论(0) 分类 《海底两万里》中英双语有声读物

The British actor Alan Rickman has died of cancer at the age of 69. In movies, he won fame for his role as Severus Snape in the Harry Potter series and before that in films such as Truly Madly Deeply, Love Actually, Die Hard, Sense and Sensibility an

发表于:2019-03-04 / 阅读(326) / 评论(0) 分类 中英双语新闻
学英语单词
adolescent need
allround
animal lymph
asclepiadaceaes
associatory
authentication exchange
azo-bonds
baritone hornists
bifid scrotum
borealis
bread the egg in sb's pocket
bud pollination
bundle adjustment
byee
cable flag
chattahoochee rivers
chemical silvering
colemanite-barytes concrete
compensation
copper acetoarsenite
date indicator driving wheel
devaluation of pound
device function controller
direct-driven pump
dred
dual motor drive
dubery
electronic countermeasures attack
English studies
EPEAT
FEBs
foster parent
fractional note
get to the core of
heavy duty word
hippoboscas
hook release circuit
infinitely many
interglandular
internal revenue code
jordanians
Kachess L.
kelyphites
kovac
law of inertia
license plate light
life-searching out of earth
lymphogranuloma
lyophylized
magilus lamarckii
Malaya Severnaya Dvina
mammalogists
mealybugs
measured components
mgb2 superconductor
misregistration character
mode extension
monoatomic layer
mud ball
net of reverves
NetWare Core Protocol
nonpsychoanalytical
order for purchase
Osikovo
painlessly
paradoxial
parchment-maker
pincers hair
posttraumatic
presentation services layer
prismatic quartz
prophetesss
psychoplegic
re-confirms
recommence
redhawk
rekeyboarded
rise level
roust about
safe-conducts
Salyut Space Station
shore boulder
short-coats
Sindora
Sinosenecio euosmus
spring hanger pin
stenosal murmur
swelling degree
tag block
tanycyte
tectricial
tetracosadienoic acid
tin spirits
Tuffier's inferior ligaments
twist drill
uk compare
vairs
veggie
Verdi
warmbir
without sympathy
Zipf law