[网络] 狄克曼缩合反应;狄克曼缩合;分子内的缩合

President Obama is sending a Thanksgiving tribute to troops serving in war zones this holiday. The White House says Mr. Obama telephoned ten service men and women to thank them for their sacrifices. Within days, the President is expected to announce

发表于:2018-12-02 / 阅读(90) / 评论(0) 分类 2009年NPR美国国家公共电台11月

The northeast just had its first big snow of the season. Meanwhile, on Titan, it was foggy. That weather report brought to you by researchers publishing in the journal Astrophysical Journal Letters. The scientists found that Titan, Saturns largest mo

发表于:2018-12-02 / 阅读(86) / 评论(0) 分类 Scientific American(十二)月

[00:13.67]THE PUB [00:18.89]酒吧 [00:30.54]I worked in my local pub and over the weekends [00:34.50]and some times during the week [00:36.88]I would stay over there with the other bar manager. [00:40.70]We shared a room. [00:42.51]It wasn't strange t

发表于:2018-12-11 / 阅读(80) / 评论(0) 分类 英语灵异故事

Thus by heating liquids we cause them to evaporate, or change into vapours or gases; 因此, 可以看出:我们能够通过加热液体使得它们蒸发, 变成水蒸气或气体; and by taking away heat from these gases, or cooling them, we tu

发表于:2018-12-18 / 阅读(59) / 评论(0) 分类 英国学生科学读本

Lesson 88 Condensation 第88课 冷凝 When the water in a kettle boils, it boils first at the bottom. 当水壶中的水沸腾时, 首先开始沸腾的是底部的水。 We cannot see this in a kettle, because the kettle is made of iron. 我们无法

发表于:2018-12-18 / 阅读(60) / 评论(0) 分类 英国学生科学读本

Amber: Hello, I'm Amber and you're listening to bbclearningenglish.com. In Entertainment today, we visit the largest art event in the Arab world - the Sharjah Art Biennial in the United Arab Emirates. (A biennial is an event that happens every 2 yea

发表于:2018-12-19 / 阅读(136) / 评论(0) 分类 Entertainment

Amber: Hello, Im Amber and youre listening to bbclearningenglish.com. In Entertainment today, we visit the largest art event in the Arab world - the Sharjah Art Biennial in the United Arab Emirates. (A biennial is an event that happens every 2 years.

发表于:2018-12-28 / 阅读(54) / 评论(0) 分类 英语听和读

-Sheldon:Fellow warriors, This is Sheldor the conqueror. Fellow:同伴 warrior:武士 conqueror:征服者 【Sheldor:Sheldon在游戏中的人物名】 战友们,我是征服者Sheldor。 We are about to enter Axidus' fortress. enter:进入

发表于:2019-01-01 / 阅读(69) / 评论(0) 分类 生活大爆炸第二季

Fog Found on Saturn's Moon Titan A study in Astrophysical Journal Letters reveals that Titan may be home to the familiar atmospheric condition known as fog--but made out of methane. Karen Hopkin reports The northeast just had its first big snow of th

发表于:2019-01-02 / 阅读(81) / 评论(0) 分类 60秒科学

This is the VOA Special English Agriculture Report. Pieter Hoff used to export lilies and tulips from the Netherlands. He retired from the flower export business seven years ago. Now, he is trying to help people grow trees and plants in the desert --

发表于:2019-01-11 / 阅读(91) / 评论(0) 分类 2010年VOA慢速英语(七)月

Tom Rivers | London 20 December 2009 Photo: AP Photo A pair of Shetland ponies are seen at Anfield Plain, England, 20 Dec 2009 Blizzard conditions have descended upon a wide section of Europe. While snow has brought smiles to the faces of children wh

发表于:2019-01-13 / 阅读(44) / 评论(0) 分类 VOA标准英语2009年(十二月)

About a girl who sits on a wall, and thinking about what happened. She just caught her boyfriend cheating with her best girl friend, and as she thinks about this the girl friend comes to her to talk. Funny and sad story at the same time, humoristic d

发表于:2019-01-18 / 阅读(49) / 评论(0) 分类 英语PK台

The chief mate of the Pequod was Starbuck, a native of Nantucket, and a Quaker by descent. 斯达巴克是裴廓德号上的大副。 他是地道的南塔开特土著,一个桂克的后代 He was a long, earnest man, and though born on an icy coas

发表于:2019-01-29 / 阅读(46) / 评论(0) 分类 白鲸记

Have you ever spent an afternoon in the backyard, maybe grilling or enjoying a basketball game, when suddenly you notice that everything goes quiet? The air seems still and calmeven the birds stop singing and quickly return to their nests. 你可曾有

发表于:2019-02-01 / 阅读(57) / 评论(0) 分类 阅读空间

财大气粗的迪拜不仅拥有世界最高建筑哈利法塔、世界最大人工岛棕榈岛和最大的购物商场,还将打造全球第一家自带热带雨林的高科技奢华酒店。除了7000平米的热带雨林,这家希尔顿旗下的

发表于:2019-02-07 / 阅读(134) / 评论(0) 分类 实用英语

Do you have the guts to part ways with all those broken gadgets, notepads and pens? This 10 step office cleanup guide should have you neat and tidy in no time. Try to spend just one minute on each task, and move quickly. 10. Paper Why its messy: Pape

发表于:2019-02-09 / 阅读(239) / 评论(0) 分类 英语小短文

The relationship between words and their meaning is a fascinating one, and linguists have spent countless years deconstructing it, taking it apart letter by letter, and trying to figure out why there are so many feelings and ideas that we cannot even

发表于:2019-02-09 / 阅读(131) / 评论(0) 分类 英语笔译

(双人组合Frou Frou)Guy Sigsworth可是鼎鼎大名的音乐家、制作人,制作过Bjork、Jem、Griffiths、Lamb、Madonna、Seal等人的作品。 Distant flickering, Greener scenery, This weather's bringing it all back again. Great adve

发表于:2019-02-11 / 阅读(52) / 评论(0) 分类 好听的英文歌曲

托福考试并列连词及真题解题要点:有关并列连词的命题在TOEEL考试中占有极重要的地位。并列连接词不仅自身是命题的焦点,它还涉及到一些其它的题型,如平行结构,词类、及一致等TOEEL考

发表于:2019-03-02 / 阅读(90) / 评论(0) 分类 托福英语

The chief mate of the Pequod was Starbuck, a native of Nantucket, and a Quaker by descent. 裴廓德号的大副叫斯达巴克,他是个南塔开特土著,也是个桂克的后代。 He was a long, earnest man, and though born on an icy coast, seeme

发表于:2019-03-10 / 阅读(124) / 评论(0) 分类 白鲸记
学英语单词
Abyssocottus
Alectura lathami
alpha cutoff (frequency)
anees
antihunters
approbativeness
backsweep
be commensurate to
bookings
bureavii
bygone age
capacitance resistence oscillator
carus ecstasis
chordeiles minor
clear sb.'s skirt
coach wrench
cold-knife
comfort humidity
competitive antagonist
Crown Prince
diacetate
diagonal form
diethyleneglycol chlorohydrin
directors of central intelligence
Dolichopetalum
dr. seusses
drug withdrawal
eftsoons
electromyographic electrode
emerick
emicin
engraved scale thermometre
expectorant cough suppressant and anti-asthmatic drug
fish-scale gallbladder
floating deck modulator
functional diagramming
glamourization
gonarezhous
green lead ore
harmonium
having a taste for
homekeeping
Humphreysville
hypothetic(al) memory
induction cooker
interdistributional
interfacility transfer trunk
international classification of diseases (icd)
intraregional trade
keep indoors
layer-built cell
localized pericarditis
Mahmudiye
main volume
malaclemys centratas
male genital disease
medium power
mercyabil
mo(u)lding board
N-methylimidazole
nation
national revenue
ndoye
near-ir
note payable trade
olfactory plate
pamscad
patey
pay in advance
performance security
perissological
pipebomb
plastic work done
platform tennis
polypropylenimine
projective representation
pulmonary capillaries
radiation biochemistry
rear fitting radius of semi-trailer towing vehicle
reclaimed sand
reflection amplitude preservation
resistance transfer factor
retrievably
retrograde conduction
rope burn
safety netting
sea breeze convergence (zone)
silicone rubber impression material
spin move
Thuin
toss out something
transmission output shaft
traveling bag
tyce
unbulwarked
unified open network exchange
unseemliest
Valvula foraminis ovalis
ventilating plant
wedge core lifter
whiteite-(Mn)
xenoskin