[电] 障壁层整流

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2018-12-04 / 阅读(309) / 评论(0) 分类 听一分钟英文-O

英语畅谈世界文化lesson7:Great Barrier Reef大堡礁

发表于:2018-12-07 / 阅读(305) / 评论(0) 分类 英语畅谈世界文化

From VOA Learning English, this is the Health Lifestyle report. Our brains are protected by our skull. But that is not the only protection it has. A natural barrier around our brains prevents germs and other damaging substances in the blood from ente

发表于:2018-12-08 / 阅读(259) / 评论(0) 分类 2018年VOA慢速英语(八)月

Chapter 24 Language Barrier between Chinese and Foreigners第 24章 中外语言障碍David:Do you know any foreign experts here in China? 你认识在中国工作的外国专家吗? You:No, language is a real barrier between Chinese and foreig

发表于:2018-12-25 / 阅读(239) / 评论(0) 分类 留学生在中国

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(369) / 评论(0) 分类 英语课程学习计划和讲义

barrier, ['briə] n (用来禁止通行的各种)障碍物(如:栅栏和关卡)=obstacle 【例】The police put a barrier 警察设了路障。barrier of speech 语言的隔阂

发表于:2018-12-30 / 阅读(233) / 评论(0) 分类 不择手段背单词

Israeli High Court to Consider Legality of Security Barrier Ross Dunn Israel's high court has agreed to consider the legality of a controversial West Bank security barrier , just weeks before the proj

发表于:2019-01-07 / 阅读(326) / 评论(0) 分类 VOA2004(上)--各类新闻

A MARTINEZ, HOST: There are few places on Earth where the impact of climate change is more noticeable than along the Great Barrier Reef. It's the planet's largest living organism that now has become the world's largest dying organism. In the past 18

发表于:2019-01-16 / 阅读(281) / 评论(0) 分类 2017年NPR美国国家公共电台7月

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2019-01-21 / 阅读(327) / 评论(0) 分类 纯正英语一分钟

But the wonky holes will never be completely covered up, because coral cant grow in freshwater. Theyll remain an indelible reminder of the reef's past lives. But the origins of the reef lie even further back in time. And to understand them means crac

发表于:2019-01-22 / 阅读(251) / 评论(0) 分类 自然百科2011年

These destructive waves are as much a part of the reefs life cycle as the animals that inhabit it, and the corals that make it. But out here, there is another miracle. A hundred miles from the coast, In the midst of this huge flat sea, suddenly and w

发表于:2019-01-22 / 阅读(321) / 评论(0) 分类 自然百科2011年

Today, the elements that support the reef are in fine balance--sun, wind and waves. But it doesn't take much to tip the balance, plummeting this huge reef into disaster. It might happen sonner than you think. Eighteen million years ago, a series of r

发表于:2019-01-22 / 阅读(259) / 评论(0) 分类 自然百科2011年

It's an astounding mechanism, but it looks like it's being overwhelmed. Recently, the coral has been telling us that its had enough. Because when it overheats, it self-destructs, expelling the algae that live with them. They turn deathly pale, a proc

发表于:2019-01-22 / 阅读(248) / 评论(0) 分类 自然百科2011年

Where the forces of nature meet? In a hidden world, a tropical miracle. At this moment, evolution is building a living colossus, a giant built by nature's tiniest creature, a model of reincarnation, a survivor born from disasterthe Great Barrier Reef

发表于:2019-01-22 / 阅读(218) / 评论(0) 分类 自然百科2011年

今天我们要学的词是barrier。 Barrier是障碍的意思。Language barrier, 是语言障碍。Trade barrier, 是贸易壁垒。The lack of funding was the biggest barrier to the road improvement, 意思是道路改善的最大障碍是缺少资

发表于:2019-01-25 / 阅读(286) / 评论(0) 分类 英语每日一词

By Jim Teeple Jerusalem 14 June 2007 The human rights group Amnesty International has called for the dismantling of the Israeli security barrier in the West Bank. The London-based group says the barrier has had a disastrous impact on the lives of Pal

发表于:2019-01-30 / 阅读(290) / 评论(0) 分类 2007年VOA标准英语(六月)

今天我们要学的词是barrier。 Barrier是障碍的意思。Language barrier, 是语言障碍。Trade barrier, 是贸易壁垒。The lack of funding was the biggest barrier to the road improvement, 意思是道路改善的最大障碍是缺少资

发表于:2019-01-30 / 阅读(223) / 评论(0) 分类 英语单词荟萃

rabbit n. 兔子 解析:hare n.野兔 rack n. 行李架 v. 使痛苦 racket n. 球拍 radar n. 雷达 解析:联系记忆:radiate v. 放射 radio n. 收音机 radioactive a.放射性的 radiatio

发表于:2019-02-03 / 阅读(273) / 评论(0) 分类 英文语法词汇

By Paul Sisco Washington 12 October 2007 American test pilot Chuck Yeager flew a plane through the sound barrier on October 14th, 1947. VOA's Paul Sisco takes a look back at the famous feat and the man who first flew at Mach 1. Some say only the Wrig

发表于:2019-02-03 / 阅读(234) / 评论(0) 分类 2007年VOA常速英语(十月)

The barrier separating Israel from West Bank Palestinian territories is the theme of a Washington exhibit by a dozen U.S. and Canadian-based artists. Each gives a different representation of what the artist views as an obstacle to peace. The curator

发表于:2019-02-18 / 阅读(277) / 评论(0) 分类 英语新闻
学英语单词
advanced spark
aggregate species
ammonium pitrogen ammoniacal nitrogen
Amperometric sensor
Atlantic pomfrets
bedsheet
bescumbers
blockade-runners
boundary films
Broomwort
camber stiffness
Camina
chip cutter
chukudu kraal
cimside
cobaltous chlorate
compressor passage
concentrically lamellated pattern
contact recording
convey'd
death-throe
denail
deviation display
dictyoptera formosana
diethyleneglycol chlorohydrin
Dissel
dwornikite
dynamic stability of equilibrium with continuous time
encinias
envelope detection circuit
estacode
extension of short term record
fine edition
Finnish mark
Foreign exchange controls
free-firest
genus leishmanias
globularly
golfingiid
gravity arc welding
grey ring
guarding
half-coil spacing
horsefuckers
hypoxylon subannulatum
in one's sleep
include col
index hand
infrared high precision thermometer
it's all gone pear-shaped
jogging machine
K-K reaction
labor management cooperation
laser Doppler microscope
law of minimum nourishment
logistic assistances
market research department
microprogrammed interface
midrange missile
mortoise
Na Khang
network load
neutrals
Norham
ophiotholia
outer end of table
outer gland
parallelogram eccentric mechanism
parathyroid glands
phosphopantetheinylate
pinfires
pinings
preferred ordinary share
psychologic operator
quadrant blocks
quick response excitation
Ramponio
re-emerged
rejector
Rhamnella caudata
rotational nystagmuss
rr. perforantes (a. cerebralis ant.)
semi-circle
semilunar fold of colon
Sheikh Abdalla Muhammad, Qâret
signal(l)ing security
signify
single roller crab
sinicise
slivings
Stokkseyri
superbiens
surface barrier diode
tetrasilicides
text-types
theorem proving use of resolution
to a point
transient running
undean
unlobed
werena